Section 1: Electricity |
|
Electric Charge & Coulomb's Law |
30:48 |
| |
Intro |
0:00 | |
| |
Objective |
0:15 | |
| |
Electric Charges |
0:50 | |
| |
| Matter is Made Up of Atoms |
0:52 | |
| |
| Most Atoms are Neutral |
1:02 | |
| |
| Ions |
1:11 | |
| |
| Coulomb |
1:18 | |
| |
| Elementary Charge |
1:34 | |
| |
| Law of Conservation of Charge |
2:03 | |
| |
Example 1 |
2:39 | |
| |
Example 2 |
3:42 | |
| |
Conductors and Insulators |
4:41 | |
| |
| Conductors Allow Electric Charges to Move Freely |
4:43 | |
| |
| Insulators Do Not Allow Electric Charges to Move Freely |
4:50 | |
| |
| Resistivity |
4:58 | |
| |
Charging by Conduction |
5:32 | |
| |
| Conduction |
5:37 | |
| |
| Balloon Example |
5:40 | |
| |
| Charged Conductor |
6:14 | |
| |
Example 3 |
6:28 | |
| |
The Electroscope |
7:16 | |
| |
Charging by Induction |
7:57 | |
| |
| Bring Positive Rod Near Electroscope |
8:08 | |
| |
| Ground the Electroscope |
8:27 | |
| |
| Sever Ground Path and Remove Positive Rod |
9:07 | |
| |
Example 4 |
9:39 | |
| |
Polarization and Electric Dipole Moment |
11:46 | |
| |
| Polarization |
11:54 | |
| |
| Electric Dipole Moment |
12:05 | |
| |
Coulomb's Law |
12:38 | |
| |
| Electrostatic Force, Also Known as Coulombic Force |
12:48 | |
| |
| How Force of Attraction or Repulsion Determined |
12:55 | |
| |
| Formula |
13:08 | |
| |
Coulomb's Law: Vector Form |
14:18 | |
| |
Example 5 |
16:05 | |
| |
Example 6 |
18:25 | |
| |
Example 7 |
19:14 | |
| |
Example 8 |
23:21 | |
|
Electric Fields |
1:19:22 |
| |
Intro |
0:00 | |
| |
Objectives |
0:09 | |
| |
Electric Fields |
1:33 | |
| |
| Property of Space That Allows a Charged Object to Feel a Force |
1:40 | |
| |
| Detect the Presence of an Electric Field |
1:51 | |
| |
| Electric Field Strength Vector |
2:03 | |
| |
| Direction of the Electric Field Vector |
2:21 | |
| |
Example 1 |
3:00 | |
| |
Visualizing the Electric Field |
4:13 | |
| |
Electric Field Lines |
4:56 | |
| |
E Field Due to a Point Charge |
7:19 | |
| |
| Derived from the Definition of the Electric Field and Coulomb's Law |
7:24 | |
| |
| Finding the Electric Field Due to Multiple Point Charges |
8:37 | |
| |
Comparing Electricity to Gravity |
8:51 | |
| |
| Force |
8:54 | |
| |
| Field Strength |
9:09 | |
| |
| Constant |
9:19 | |
| |
| Charge Units vs. Mass Units |
9:35 | |
| |
| Attracts vs. Repel |
9:44 | |
| |
Example 2 |
10:06 | |
| |
Example 3 |
17:25 | |
| |
Example 4 |
24:29 | |
| |
Example 5 |
25:23 | |
| |
Charge Densities |
26:09 | |
| |
| Linear Charge Density |
26:26 | |
| |
| Surface Charge Density |
26:30 | |
| |
| Volume Charge Density |
26:47 | |
| |
Example 6 |
27:26 | |
| |
Example 7 |
37:07 | |
| |
Example 8 |
50:13 | |
| |
Example 9 |
54:01 | |
| |
Example 10 |
63:10 | |
| |
Example 11 |
73:58 | |
|
Gauss's Law |
52:53 |
| |
Intro |
0:00 | |
| |
Objectives |
0:07 | |
| |
Electric Flux |
1:16 | |
| |
| Amount of Electric Field Penetrating a Surface |
1:19 | |
| |
| Symbol |
1:23 | |
| |
Point Charge Inside a Hollow Sphere |
4:31 | |
| |
| Place a Point Charge Inside a Hollow Sphere of Radius R |
4:39 | |
| |
| Determine the Flux Through the Sphere |
5:09 | |
| |
| Gauss's Law |
8:39 | |
| |
| Total Flux |
8:59 | |
| |
Gauss's Law |
9:10 | |
| |
Example 1 |
9:53 | |
| |
Example 2 |
17:28 | |
| |
Example 3 |
22:37 | |
| |
Example 4 |
25:40 | |
| |
Example 5 |
30:49 | |
| |
Example 6 |
45:06 | |
|
Electric Potential & Electric Potential Energy |
1:14:03 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Electric Potential Energy |
0:58 | |
| |
| Gravitational Potential Energy |
1:02 | |
| |
| Electric Potential Energy |
1:11 | |
| |
| Electric Potential |
1:19 | |
| |
Example 1 |
1:59 | |
| |
Example 2 |
3:08 | |
| |
The Electron-Volt |
4:02 | |
| |
| Electronvolt |
4:16 | |
| |
| 1 eV is the Amount of Work Done in Moving an Elementary Charge Through a Potential Difference of 1 Volt |
4:26 | |
| |
| Conversion Ratio |
4:41 | |
| |
Example 3 |
4:52 | |
| |
Equipotential Lines |
5:35 | |
| |
| Topographic Maps |
5:36 | |
| |
| Lines Connecting Points of Equal Electrical Potential |
5:47 | |
| |
| Always Cross Electrical Field Lines at Right Angles |
5:57 | |
| |
| Gradient of Potential Increases As Equipotential Lines Get Closer |
6:02 | |
| |
| Electric Field Points from High to Low Potential |
6:27 | |
| |
Drawing Equipotential Lines |
6:49 | |
| |
E Potential Energy Due to a Point Charge |
8:20 | |
| |
Electric Force from Electric Potential Energy |
11:59 | |
| |
E Potential Due to a Point Charge |
13:07 | |
| |
Example 4 |
14:42 | |
| |
Example 5 |
15:59 | |
| |
Finding Electric Field From Electric Potential |
19:06 | |
| |
Example 6 |
23:41 | |
| |
Example 7 |
25:08 | |
| |
Example 8 |
26:33 | |
| |
Example 9 |
29:01 | |
| |
Example 10 |
31:26 | |
| |
Example 11 |
43:23 | |
| |
Example 12 |
51:51 | |
| |
Example 13 |
58:12 | |
|
Electric Potential Due to Continuous Charge Distributions |
1:01:28 |
| |
Intro |
0:00 | |
| |
Objectives |
0:10 | |
| |
Potential Due to a Charged Ring |
0:27 | |
| |
Potential Due to a Uniformly Charged Desk |
3:38 | |
| |
Potential Due to a Spherical Shell of Charge |
11:21 | |
| |
Potential Due to a Uniform Solid Sphere |
14:50 | |
| |
Example 1 |
23:08 | |
| |
Example 2 |
30:43 | |
| |
Example 3 |
41:58 | |
| |
Example 4 |
51:41 | |
|
Conductors |
20:35 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Charges in a Conductor |
0:32 | |
| |
| Charge is Free to Move Until the |
0:36 | |
| |
| All Charge Resides at Surface |
2:18 | |
| |
| Field Lines are Perpendicular to Surface |
2:34 | |
| |
Electric Field at the Surface of a Conductor |
3:04 | |
| |
| Looking at Just the Outer Surface |
3:08 | |
| |
| Large Electric Field Where You Have the Largest Charge Density |
3:59 | |
| |
Hollow Conductors |
4:22 | |
| |
| Draw Hollow Conductor and Gaussian Surface |
4:36 | |
| |
| Applying Gaussian Law |
4:53 | |
| |
| Any Hollow Conductor Has Zero Electric Field in Its Interior |
5:24 | |
| |
| Faraday Cage |
5:35 | |
| |
Electric Field and Potential Due to a Conducting Sphere |
6:03 | |
| |
Example 1 |
7:31 | |
| |
Example 2 |
12:39 | |
|
Capacitors |
41:23 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
What is a Capacitor? |
0:42 | |
| |
| Electric Device Used to Store Electrical Energy |
0:44 | |
| |
| Place Opposite Charges on Each Plate |
1:10 | |
| |
| Develop a Potential Difference Across the Plates |
1:14 | |
| |
| Energy is Stored in the Electric Field Between the Plates |
1:17 | |
| |
Capacitance |
1:22 | |
| |
| Ratio of the Charge Separated on the Plates of a Capacitor to the Potential Difference Between the Plates |
1:25 | |
| |
| Units of Capacitance |
1:32 | |
| |
| Farad |
1:37 | |
| |
| Formula |
1:52 | |
| |
Calculating Capacitance |
1:59 | |
| |
| Assume Charge on Each Conductor |
2:05 | |
| |
| Find the Electric Field |
2:11 | |
| |
| Calculate V by Integrating the Electric Field |
2:21 | |
| |
| Utilize C=Q/V to Solve for Capitance |
2:33 | |
| |
Example 1 |
2:44 | |
| |
Example 2 |
5:30 | |
| |
Example 3 |
10:46 | |
| |
Energy Stored in a Capacitor |
15:25 | |
| |
| Work is Done Charging a Capacitor |
15:28 | |
| |
| Solve For That |
15:55 | |
| |
Field Energy Density |
18:09 | |
| |
| Amount of Energy Stored Between the Plates of a Capacitor |
18:11 | |
| |
| Example |
18:25 | |
| |
Dielectrics |
20:44 | |
| |
| Insulating Materials Place Between Plates of Capacitor to Increase The Devices' Capacitance |
20:47 | |
| |
| Electric Field is Weakened |
21:00 | |
| |
| The Greater the Amount of Polarization The Greater the Reduction in Electric Field Strength |
21:58 | |
| |
Dielectric Constant (K) |
22:30 | |
| |
| Formula |
23:00 | |
| |
| Net Electric Field |
23:35 | |
| |
| Key Take Away Point |
23:50 | |
| |
Example 4 |
24:00 | |
| |
Example 5 |
25:50 | |
| |
Example 6 |
26:50 | |
| |
Example 7 |
28:53 | |
| |
Example 8 |
30:57 | |
| |
Example 9 |
32:55 | |
| |
Example 10 |
34:59 | |
| |
Example 11 |
37:35 | |
| |
Example 12 |
39:57 | |
Section 2: Current Electricity |
|
Current & Resistance |
17:59 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Electric Current |
0:44 | |
| |
| Flow Rate of Electric Charge |
0:45 | |
| |
| Amperes |
0:49 | |
| |
| Positive Current Flow |
1:01 | |
| |
| Current Formula |
1:19 | |
| |
Drift Velocity |
1:35 | |
| |
| Constant Thermal Motion |
1:39 | |
| |
| Net Electron Flow |
1:43 | |
| |
| When Electric Field is Applied |
1:49 | |
| |
| Electron Drift Velocity |
1:55 | |
| |
Derivation of Current Flow |
2:12 | |
| |
| Apply Electric Field E |
2:20 | |
| |
| Define N as the Volume Density of Charge Carriers |
2:27 | |
| |
Current Density |
4:33 | |
| |
| Current Per Area |
4:36 | |
| |
| Formula |
4:44 | |
| |
Resistance |
5:14 | |
| |
| Ratio of the Potential Drop Across an Object to the Current Flowing Through the Object |
5:19 | |
| |
| Ohmic Materials Follow Ohm's Law |
5:23 | |
| |
Resistance of a Wire |
6:05 | |
| |
| Depends on Resistivity |
6:09 | |
| |
| Resistivity Relates to the Ability of a Material to Resist the Flow of Electrons |
6:25 | |
| |
Refining Ohm's Law |
7:22 | |
| |
Conversion of Electric Energy to Thermal Energy |
8:23 | |
| |
Example 1 |
9:54 | |
| |
Example 2 |
10:54 | |
| |
Example 3 |
11:26 | |
| |
Example 4 |
14:41 | |
| |
Example 5 |
15:24 | |
|
Circuits I: Series Circuits |
29:08 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Ohm's Law Revisited |
0:39 | |
| |
| Relates Resistance, Potential Difference, and Current Flow |
0:39 | |
| |
| Formula |
0:44 | |
| |
Example 1 |
1:09 | |
| |
Example 2 |
1:44 | |
| |
Example 3 |
2:15 | |
| |
Example 4 |
2:56 | |
| |
Electrical Power |
3:26 | |
| |
| Transfer of Energy Into Different Types |
3:28 | |
| |
| Light Bulb |
3:37 | |
| |
| Television |
3:41 | |
| |
Example 5 |
3:49 | |
| |
Example 6 |
4:27 | |
| |
Example 7 |
5:12 | |
| |
Electrical Circuits |
5:42 | |
| |
| Closed-Loop Path Which Current Can Flow |
5:43 | |
| |
| Typically Comprised of Electrical Devices |
5:52 | |
| |
| Conventional Current Flows from High Potential to Low Potential |
6:04 | |
| |
Circuit Schematics |
6:26 | |
| |
| Three-dimensional Electrical Circuits |
6:37 | |
| |
| Source of Potential Difference Required for Current to Flow |
7:29 | |
| |
Complete Conducting Paths |
7:42 | |
| |
| Current Only Flows in Complete Paths |
7:43 | |
| |
| Left Image |
7:46 | |
| |
| Right Image |
7:56 | |
| |
Voltmeters |
8:25 | |
| |
| Measure the Potential Difference Between Two Points in a Circuit |
8:29 | |
| |
| Can Remove Voltmeter from Circuit Without Breaking the Circuit |
8:47 | |
| |
| Very High Resistance |
8:53 | |
| |
Ammeters |
9:31 | |
| |
| Measure the Current Flowing Through an Element of a Circuit |
9:32 | |
| |
| Very Low Resistance |
9:46 | |
| |
| Put Ammeter in Correctly |
10:00 | |
| |
Example 8 |
10:24 | |
| |
Example 9 |
11:39 | |
| |
Example 10 |
12:59 | |
| |
Example 11 |
13:16 | |
| |
Series Circuits |
13:46 | |
| |
| Single Current Path |
13:49 | |
| |
| Removal of Any Circuit Element Causes an Open Circuit |
13:54 | |
| |
Kirchhoff's Laws |
15:48 | |
| |
| Utilized in Analyzing Circuits |
15:54 | |
| |
| Kirchhoff's Current Law |
15:58 | |
| |
| Junction Rule |
16:02 | |
| |
| Kirchhoff's Voltage Law |
16:30 | |
| |
| Loop Rule |
16:49 | |
| |
Example 12 |
16:58 | |
| |
Example 13 |
17:32 | |
| |
Basic Series Circuit Analysis |
18:36 | |
| |
Example 14 |
22:06 | |
| |
Example 15 |
22:29 | |
| |
Example 16 |
24:02 | |
| |
Example 17 |
26:47 | |
|
Circuits II: Parallel Circuits |
39:09 |
| |
Intro |
0:00 | |
| |
Objectives |
0:16 | |
| |
Parallel Circuits |
0:38 | |
| |
| Multiple Current Paths |
0:40 | |
| |
| Removal of a Circuit Element May Allow Other Branches of the Circuit to Continue Operating |
0:44 | |
| |
| Draw a Simple Parallel Circuit |
1:02 | |
| |
Basic Parallel Circuit Analysis |
3:06 | |
| |
Example 1 |
5:58 | |
| |
Example 2 |
8:14 | |
| |
Example 3 |
9:05 | |
| |
Example 4 |
11:56 | |
| |
Combination Series-Parallel Circuits |
14:08 | |
| |
| Circuit Doesn't Have to be Completely Serial or Parallel |
14:10 | |
| |
| Look for Portions of the Circuit With Parallel Elements |
14:15 | |
| |
| Lead to Systems of Equations to Solve |
14:42 | |
| |
Analysis of a Combination Circuit |
14:51 | |
| |
Example 5 |
20:23 | |
| |
Batteries |
28:49 | |
| |
| Electromotive Force |
28:50 | |
| |
| Pump for Charge |
29:04 | |
| |
| Ideal Batteries Have No Resistance |
29:10 | |
| |
| Real Batteries and Internal Resistance |
29:20 | |
| |
| Terminal Voltage in Real Batteries |
29:33 | |
| |
Ideal Battery |
29:50 | |
| |
Real Battery |
30:25 | |
| |
Example 6 |
31:10 | |
| |
Example 7 |
33:23 | |
| |
Example 8 |
35:49 | |
| |
Example 9 |
38:43 | |
|
RC Circuits: Steady State |
34:03 |
| |
Intro |
0:00 | |
| |
Objectives |
0:17 | |
| |
Capacitors in Parallel |
0:51 | |
| |
| Store Charge on Plates |
0:52 | |
| |
| Can Be Replaced with an Equivalent Capacitor |
0:56 | |
| |
Capacitors in Series |
1:12 | |
| |
| Must Be the Same |
1:13 | |
| |
| Can Be Replaced with an Equivalent Capacitor |
1:15 | |
| |
RC Circuits |
1:30 | |
| |
| Comprised of a Source of Potential Difference, a Resistor Network, and Capacitor |
1:31 | |
| |
| RC Circuits from the Steady-State Perspective |
1:37 | |
| |
| Key to Understanding RC Circuit Performance |
1:48 | |
| |
Charging an RC Circuit |
2:08 | |
| |
Discharging an RC Circuit |
6:18 | |
| |
The Time Constant |
8:49 | |
| |
| Time Constant |
8:58 | |
| |
| By 5 Time Constant |
9:19 | |
| |
Example 1 |
9:45 | |
| |
Example 2 |
13:27 | |
| |
Example 3 |
16:35 | |
| |
Example 4 |
18:03 | |
| |
Example 5 |
19:39 | |
| |
Example 6 |
26:14 | |
|
RC Circuits: Transient Analysis |
1:01:07 |
| |
Intro |
0:00 | |
| |
Objectives |
0:13 | |
| |
Charging an RC Circuit |
1:11 | |
| |
| Basic RC Circuit |
1:15 | |
| |
| Graph of Current Circuit |
1:29 | |
| |
| Graph of Charge |
2:17 | |
| |
| Graph of Voltage |
2:34 | |
| |
| Mathematically Describe the Charts |
2:56 | |
| |
Discharging an RC Circuit |
13:29 | |
| |
| Graph of Current |
13:47 | |
| |
| Graph of Charge |
14:08 | |
| |
| Graph of Voltage |
14:15 | |
| |
| Mathematically Describe the Charts |
14:30 | |
| |
The Time Constant |
20:03 | |
| |
| Time Constant |
20:04 | |
| |
| By 5 Time Constant |
20:14 | |
| |
Example 1 |
20:39 | |
| |
Example 2 |
28:53 | |
| |
Example 3 |
27:02 | |
| |
Example 4 |
44:29 | |
| |
Example 5 |
55:24 | |
Section 3: Magnetism |
|
Magnets |
8:38 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Magnetism |
0:35 | |
| |
| Force Caused by Moving Charges |
0:36 | |
| |
| Dipoles |
0:40 | |
| |
| Like Poles Repel, Opposite Poles Attract |
0:53 | |
| |
| Magnetic Domains |
0:58 | |
| |
| Random Domains |
1:04 | |
| |
| Net Magnetic Field |
1:26 | |
| |
Example 1 |
1:40 | |
| |
Magnetic Fields |
2:03 | |
| |
| Magnetic Field Strength |
2:04 | |
| |
| Magnets are Polarized |
2:16 | |
| |
Magnetic Field Lines |
2:53 | |
| |
| Show the Direction the North Pole of a Magnet Would Tend to Point if Placed on The Field |
2:54 | |
| |
| Direction |
3:25 | |
| |
| Magnetic Flux |
3:41 | |
| |
The Compass |
4:05 | |
| |
| Earth is a Giant Magnet |
4:07 | |
| |
| Earth's Magnetic North Pole |
4:10 | |
| |
| Compass Lines Up with the Net Magnetic Field |
4:48 | |
| |
Magnetic Permeability |
5:00 | |
| |
| Ratio of the magnetic Field Strength Induced in a Material to the Magnetic Field Strength of the Inducing Field |
5:01 | |
| |
| Free Space |
5:13 | |
| |
| Permeability of Matter |
5:41 | |
| |
| Highly Magnetic Materials |
5:47 | |
| |
Magnetic Dipole Moment |
5:54 | |
| |
| The Force That a Magnet Can Exert on Moving Charges |
5:59 | |
| |
| Relative Strength of a Magnet |
6:04 | |
| |
Example 2 |
6:26 | |
| |
Example 3 |
6:52 | |
| |
Example 4 |
7:32 | |
| |
Example 5 |
7:57 | |
|
Moving Charges In Magnetic Fields |
29:07 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Magnetic Fields |
0:57 | |
| |
| Vector Quantity |
0:59 | |
| |
| Tesla |
1:08 | |
| |
| Gauss |
1:14 | |
| |
Forces on Moving Charges |
1:30 | |
| |
| Magnetic Force is Always Perpendicular to the Charged Objects Velocity |
1:31 | |
| |
| Magnetic Force Formula |
2:04 | |
| |
| Magnitude of That |
2:20 | |
| |
| Image |
2:29 | |
| |
Direction of the Magnetic Force |
3:54 | |
| |
| Right-Hand Rule |
3:57 | |
| |
| Electron of Negative Charge |
4:04 | |
| |
Example 1 |
4:51 | |
| |
Example 2 |
6:58 | |
| |
Path of Charged Particles in B Fields |
8:07 | |
| |
| Magnetic Force Cannot Perform Work on a Moving Charge |
8:08 | |
| |
| Magnetic Force Can Change Its Direction |
8:11 | |
| |
Total Force on a Moving Charged Particle |
9:40 | |
| |
| E Field |
9:50 | |
| |
| B Field |
9:54 | |
| |
| Lorentz Force |
9:57 | |
| |
Velocity Selector |
10:33 | |
| |
| Charged Particle in Crosses E and B Fields Can Undergo Constant Velocity Motion |
10:37 | |
| |
| Particle Can Travel Through the Selector Without Any Deflection |
10:49 | |
| |
Mass Spectrometer |
12:21 | |
| |
| Magnetic Fields Accelerate Moving Charges So That They Travel in a Circle |
12:26 | |
| |
| Used to Determine the Mass of An Unknown Particle |
12:32 | |
| |
Example 3 |
13:11 | |
| |
Example 4 |
15:01 | |
| |
Example 5 |
16:44 | |
| |
Example 6 |
17:33 | |
| |
Example 7 |
19:12 | |
| |
Example 8 |
19:50 | |
| |
Example 9 |
24:02 | |
| |
Example 10 |
25:21 | |
|
Forces on Current-Carrying Wires |
17:52 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Forces on Current-Carrying Wires |
0:42 | |
| |
| Moving Charges in Magnetic Fields Experience Forces |
0:45 | |
| |
| Current in a Wire is Just Flow of Charges |
0:49 | |
| |
Direction of Force Given by RHR |
4:04 | |
| |
Example 1 |
4:22 | |
| |
Electric Motors |
5:59 | |
| |
Example 2 |
8:14 | |
| |
Example 3 |
8:53 | |
| |
Example 4 |
10:09 | |
| |
Example 5 |
11:04 | |
| |
Example 6 |
12:03 | |
|
Magnetic Fields Due to Current-Carrying Wires |
24:43 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Force on a Current-Carrying Wire |
0:38 | |
| |
| Magnetic Fields Cause a Force on Moving Charges |
0:40 | |
| |
| Current Carrying Wires |
0:44 | |
| |
| How to Find the Force |
0:55 | |
| |
| Direction Given by the Right Hand Rule |
1:04 | |
| |
Example 1 |
1:17 | |
| |
Example 2 |
2:26 | |
| |
Magnetic Field Due to a Current-Carrying Wire |
4:20 | |
| |
| Moving Charges Create Magnetic Fields |
4:24 | |
| |
| Current-Carrying Wires Carry Moving Charges |
4:27 | |
| |
| Right Hand Rule |
4:32 | |
| |
| Multiple Wires |
4:51 | |
| |
| Current-Carrying Wires Can Exert Forces Upon Each Other |
4:58 | |
| |
| First Right Hand Rule |
5:15 | |
| |
Example 3 |
6:46 | |
| |
Force Between Parallel Current Carrying Wires |
8:01 | |
| |
| Right Hand Rules to Determine Force Between Parallel Current Carrying Wires |
8:03 | |
| |
| Find Magnetic Field Due to First Wire, Then Find Direction of Force on 2nd Wire |
8:08 | |
| |
| Example |
8:20 | |
| |
Gauss's Law for Magnetism |
9:26 | |
| |
Example 4 |
10:35 | |
| |
Example 5 |
12:57 | |
| |
Example 6 |
14:19 | |
| |
Example 7 |
16:50 | |
| |
Example 8 |
18:15 | |
| |
Example 9 |
18:43 | |
|
The Biot-Savart Law |
21:50 |
| |
Intro |
0:00 | |
| |
Objectives |
0:07 | |
| |
Biot-Savart Law |
0:24 | |
| |
| Brute Force Method |
0:49 | |
| |
| Draw It Out |
0:54 | |
| |
| Diagram |
1:35 | |
| |
Example 1 |
3:43 | |
| |
Example 2 |
7:02 | |
| |
Example 3 |
14:31 | |
|
Ampere's Law |
26:31 |
| |
Intro |
0:00 | |
| |
Objectives |
0:07 | |
| |
Ampere's Law |
0:27 | |
| |
| Finds the Magnetic Field Due to Current Flowing in a Wire in Situations of Planar and Cylindrical Symmetry |
0:30 | |
| |
| Formula |
0:40 | |
| |
| Example |
1:00 | |
| |
Example 1 |
2:19 | |
| |
Example 2 |
4:08 | |
| |
Example 3 |
6:23 | |
| |
Example 4 |
8:06 | |
| |
Example 5 |
11:43 | |
| |
Example 6 |
13:40 | |
| |
Example 7 |
17:54 | |
|
Magnetic Flux |
7:24 |
| |
Intro |
0:00 | |
| |
Objectives |
0:07 | |
| |
Magnetic Flux |
0:31 | |
| |
| Amount of Magnetic Field Penetrating a Surface |
0:32 | |
| |
| Webers |
0:42 | |
| |
| Flux |
1:07 | |
| |
| Total Magnetic Flux |
1:27 | |
| |
Magnetic Flux Through Closed Surfaces |
1:51 | |
| |
Gauss's Law for Magnetism |
2:20 | |
| |
| Total Flux Magnetic Flux Through Any Closed Surface is Zero |
2:23 | |
| |
| Formula |
2:45 | |
| |
Example 1 |
3:02 | |
| |
Example 2 |
4:26 | |
|
Faraday's Law & Lenz's Law |
1:04:33 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Faraday's Law |
0:44 | |
| |
| Faraday's Law |
0:46 | |
| |
| Direction of the Induced Current is Given by Lenz's Law |
1:09 | |
| |
| Formula |
1:15 | |
| |
| Lenz's Law |
1:49 | |
| |
Lenz's Law |
2:14 | |
| |
| Lenz's Law |
2:16 | |
| |
| Example |
2:30 | |
| |
Applying Lenz's Law |
4:09 | |
| |
| If B is Increasing |
4:13 | |
| |
| If B is Decreasing |
4:30 | |
| |
Maxwell's Equations |
4:55 | |
| |
| Gauss's Law |
4:59 | |
| |
| Gauss's Law for Magnetism |
5:16 | |
| |
| Ampere's Law |
5:26 | |
| |
| Faraday's Law |
5:39 | |
| |
Example 1 |
6:14 | |
| |
Example 2 |
9:36 | |
| |
Example 3 |
11:12 | |
| |
Example 4 |
19:33 | |
| |
Example 5 |
26:06 | |
| |
Example 6 |
31:55 | |
| |
Example 7 |
42:32 | |
| |
Example 8 |
48:08 | |
| |
Example 9 |
55:50 | |
Section 4: Inductance, RL Circuits, and LC Circuits |
|
Inductance |
6:41 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
Self Inductance |
0:25 | |
| |
| Ability of a Circuit to Oppose the Magnetic Flux That is Produced by the Circuit Itself |
0:27 | |
| |
| Changing Magnetic Field Creates an Induced EMF That Fights the Change |
0:37 | |
| |
| Henrys |
0:44 | |
| |
| Function of the Circuit's Geometry |
0:53 | |
| |
Calculating Self Inductance |
1:10 | |
| |
Example 1 |
3:40 | |
| |
Example 2 |
5:23 | |
|
RL Circuits |
42:17 |
| |
Intro |
0:00 | |
| |
Objectives |
0:11 | |
| |
Inductors in Circuits |
0:49 | |
| |
| Inductor Opposes Current Flow and Acts Like an Open Circuit When Circuit is First Turned On |
0:52 | |
| |
| Inductor Keeps Current Going and Acts as a Short |
1:04 | |
| |
| If the Battery is Removed After a Long Time |
1:16 | |
| |
| Resister Dissipates Power, Current Will Decay |
1:36 | |
| |
Current in RL Circuits |
2:00 | |
| |
| Define the Diagram |
2:03 | |
| |
| Mathematically Solve |
3:07 | |
| |
Voltage in RL Circuits |
7:51 | |
| |
| Voltage Formula |
7:52 | |
| |
| Solve |
8:17 | |
| |
Rate of Change of Current in RL Circuits |
9:42 | |
| |
Current and Voltage Graphs |
10:54 | |
| |
| Current Graph |
10:57 | |
| |
| Voltage Graph |
11:34 | |
| |
Example 1 |
12:25 | |
| |
Example 2 |
23:44 | |
| |
Example 3 |
34:44 | |
|
LC Circuits |
9:47 |
| |
Intro |
0:00 | |
| |
Objectives |
0:08 | |
| |
LC Circuits |
0:30 | |
| |
| Assume Capacitor is Fully Charged When Circuit is First Turned On |
0:38 | |
| |
| Interplay of Capacitor and Inductor Creates an Oscillating System |
0:42 | |
| |
Charge in LC Circuit |
0:57 | |
| |
Current and Potential in LC Circuits |
7:14 | |
| |
Graphs of LC Circuits |
8:27 | |
Section 5: Maxwell's Equations |
|
Maxwell's Equations |
3:38 |
| |
Intro |
0:00 | |
| |
Objectives |
0:07 | |
| |
Maxwell's Equations |
0:19 | |
| |
| Gauss's Law |
0:20 | |
| |
| Gauss's Law for Magnetism |
0:44 | |
| |
| Faraday's Law |
1:00 | |
| |
| Ampere's Law |
1:18 | |
| |
Revising Ampere's Law |
1:49 | |
| |
| Allows Us to Calculate the Magnetic Field Due to an Electric Current |
1:50 | |
| |
| Changing Electric Field Produces a Magnetic Field |
1:58 | |
| |
| Conduction Current |
2:33 | |
| |
| Displacement Current |
2:44 | |
| |
Maxwell's Equations (Complete) |
2:58 | |
Section 6: Sample AP Exams |
|
1998 AP Practice Exam: Multiple Choice Questions |
32:33 |
| |
Intro |
0:00 | |
| |
1998 AP Practice Exam Link |
0:11 | |
| |
Multiple Choice 36 |
0:36 | |
| |
Multiple Choice 37 |
2:07 | |
| |
Multiple Choice 38 |
2:53 | |
| |
Multiple Choice 39 |
3:32 | |
| |
Multiple Choice 40 |
4:37 | |
| |
Multiple Choice 41 |
4:43 | |
| |
Multiple Choice 42 |
5:22 | |
| |
Multiple Choice 43 |
6:00 | |
| |
Multiple Choice 44 |
8:09 | |
| |
Multiple Choice 45 |
8:27 | |
| |
Multiple Choice 46 |
9:03 | |
| |
Multiple Choice 47 |
9:30 | |
| |
Multiple Choice 48 |
10:19 | |
| |
Multiple Choice 49 |
10:47 | |
| |
Multiple Choice 50 |
12:25 | |
| |
Multiple Choice 51 |
13:10 | |
| |
Multiple Choice 52 |
15:06 | |
| |
Multiple Choice 53 |
16:01 | |
| |
Multiple Choice 54 |
16:44 | |
| |
Multiple Choice 55 |
17:10 | |
| |
Multiple Choice 56 |
19:08 | |
| |
Multiple Choice 57 |
20:39 | |
| |
Multiple Choice 58 |
22:24 | |
| |
Multiple Choice 59 |
22:52 | |
| |
Multiple Choice 60 |
23:34 | |
| |
Multiple Choice 61 |
24:09 | |
| |
Multiple Choice 62 |
24:40 | |
| |
Multiple Choice 63 |
25:06 | |
| |
Multiple Choice 64 |
26:07 | |
| |
Multiple Choice 65 |
27:26 | |
| |
Multiple Choice 66 |
28:32 | |
| |
Multiple Choice 67 |
29:14 | |
| |
Multiple Choice 68 |
29:41 | |
| |
Multiple Choice 69 |
31:23 | |
| |
Multiple Choice 70 |
31:49 | |
|
1998 AP Practice Exam: Free Response Questions |
29:55 |
| |
Intro |
0:00 | |
| |
1998 AP Practice Exam Link |
0:14 | |
| |
Free Response 1 |
0:22 | |
| |
Free Response 2 |
10:04 | |
| |
Free Response 3 |
16:22 | |