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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
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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