A metal rod of length L in a region of space where a constant magnetic field points into the page rotates about an axis through its center at constant angular velocity ?. The ends, A and E, make contact with a split ring that connects to an external circuit. The current in the external circuit of resistance R has magnitude

A.

0.

B.
.

C.
.

D.
.

E.
.


Answer: A

Physics & Space Science

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