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ABC is a triangular frame made of a cond...

ABC is a triangular frame made of a conducting wire and is right angled at B. Its side BC is vertical and AB is horizontal. The frame is placed in a uniform magnetic field B in vertically upward direction. The frame is rotated about its side BC with constant angular speed `omega`. Resistance of the entire frame is R. Neglect gravity. Length `AB = L, BC = 2L`.
(a) Find the torque needed to keep the frame rotating with constant angular speed.
(b) Find the potential difference between points A and C.

Text Solution

Verified by Experts

The correct Answer is:
(a) Zero (b) `(1)/(2) B omega L^(2)`
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