[Solved] In the Figure, a Straight Wire Carries a Steady Current

Question 9
Multiple Choice

In the figure, a straight wire carries a steady current I perpendicular to the plane of the page. A bar is in contact with a pair of circular rails, and rotates about the straight wire. The direction of the induced current through the resistor R is img

A) from a to b.
B) from b to a.
C) There is no induced current through the resistor.

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