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In the figure shown 'R' is a fixed condu...

In the figure shown `'R'` is a fixed conducting fixed ring of negligible resistance and radius `'a'` `PQ` is a uniform rod of resistance `r`. It is hinged at the centre of the ring and rotated about this point in clockwise direction with a uniform angular velocity `w`. These is a uniform magnetic filled of strength `'B'` ponting inwards. `'r'` is a stationary resistance

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