The output of a dynamo using a split-ring com | vedclass

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(C) dynamo (or generator) produces alternating current $(ac)$ in its armature coil due to electromagnetic induction. $A$ split-ring commutator acts as

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Fluctuating $dc$

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(C) dynamo (or generator) produces alternating current $(ac)$ in its armature coil due to electromagnetic induction. $A$ split-ring commutator acts as a mechanical rectifier that reverses the connections of the coil to the external circuit every half cycle. This ensures that the current in the external circuit flows in only one direction. Since the magnitude of the induced electromotive force varies sinusoidally,the resulting output is a fluctuating $dc$.

The output of a dynamo using a split-ring commutator is

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