Question

What is the work done by the magnetic field on the moving charge?

• A. No work is done by the magnetic field on the moving charge.
• B. Work done will be maximum.
• C. Work done will be minimum.
• D. Both A and B

Answer 1

The correct option is A No work is done by the magnetic field on the moving charge.

The magnetic force acts in such a way that the direction of the magnetic force and velocity are always perpendicular to each other. If force and velocity are perpendicular force and displacement are also perpendicular, thus W= FS cos q, if q = 90, work done will be zero.