Question

Does frequency changes during stepping up and stepping down?​

Answer 1

ANSWER:

No frequency changes during stepping up and stepping down.

EXPLANATION :

So, explaining step by step

When primary voltage is applied at frequency f the flux induced in the core will be at same frequency because it depends on the rate of change of voltage applied.

Now flux induced is also sinosoidal equivalent to the voltage applied and of same frequency.

The secondary emf is induced due to the rate of change of flux i.e frequency of flux

Thus secondary emf is also of the same frequency as that of primary emf.

Thus frequency doesnot change in transformer regardless it is step up or step down.

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