Question

A circular coil with resistance R has N turns, each of length l and width w....

A circular coil with resistance R has N turns, each of length l and width w. The coil moves into a uniform magnetic field B with constant velocity v. The direction of the magnetic field is into the page. What are the magnitude and direction of the total magnetic force on the coil for the following situations? (Use the following as necessary N, B, w, v, and R)

(a) as it enters the magnetic field
(b) as it moves within the field
(c) as it leaves the field

Note: I know that answer for b is zero, but what are the answers for a and c? Please help.

Science   Advanced-Physics   
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