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प्रश्न
To convert mechanical energy into electrical energy, one can use
(a) DC dynamo
(b) AC dynamo
(c) motor
(d) transformer
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उत्तर
(a) DC dynamo
(b) AC dynamo
An AC or DC dynamo can be used to convert mechanical energy to electrical energy.
A motor converts electrical energy to mechanical energy and a transformer is used to step up or down the voltage or simply to transfer electrical energy.
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