The arm of an electric generator with split rings is rotated in clockwise direction. The deflection of the galvanometer will _______.

be towards left

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be towards right

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oscillates between left and right.

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Can not be determined

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Solution

The correct option is A be towards left
Applying Fleming’s right hand rule on the left arm, we get the direction of current as from A to B. In the right arm, the direction of current will be from C to D. Hence, the galvanometer deflects to the left. Since the coil is connected to the circuit through split rings, it will be a DC generator and hence, the direction of current is constant.

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