10. A rectangular coil with resistance R has N turns, each of length t and width

Question

10. A rectangular coil with resistance R has N turns, each of length t and width w as shown in the figure. The coil moves into a uniform magnetic field B with constant velocity v. What are the magnitude and direction of the force exerted on the trailing side of the coil is as it enters the magnetic field (at any moment during the entering process, the trailing side of the coil will not be exposed to the magnetic field)? Bin xXXXx (to the right) (C)-ndr (to the left) (D)--(to the right (A) (E) 0 (to the left) (B)

Explanation / Answer

as trailing side is outside of magnetic field so even if current flows through the loop due to induced emf in front side then also force = ilB

now at trailing side B=0

so force = 0

option E is correct

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