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For more information, please see full course syllabus of AP Physics C: Electricity & Magnetism
For more information, please see full course syllabus of AP Physics C: Electricity & Magnetism
AP Physics C: Electricity & Magnetism Moving Charges In Magnetic Fields
Lecture Description
Just like in the electricity portion and its electric fields, magnetism has a magnetic field and a magnetic force. However, the magnetic force isn’t as cut and dry as the electric force; you must use the right-hand rule to find the direction of the missing vector in a magnetic force problem (either the force, particle’s velocity, or the magnetic field vector). Likewise, if dealing with a negatively charged particle, you can use the left-hand rule as a way of counteracting the opposite charge and integrating it into the system. The RHR and LHR will be key elements in solving some magnetism problems, as well as bearing in mind the equations and being able to diagram what is happening in a magnetism problem.
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1 answer
Mon Nov 24, 2014 6:08 AM
Post by QuangNguyen VoHuynh on November 24, 2014
I would like to ask the reason why magnetic force cannot perform work? Is it because the force creates a circular motion, so that the displacement is zero?