A transformer has 50 turns in the primary and 100 in the secondary. If the primary is connected to a 220 V DC supply, what will be the voltage across the secondary?

Given that a transformer has 50 turns in the primary and 100 in the secondary.

If the primary is connected to a 220 V DC supply, the voltage across the secondary is zero because a transformer does not work on DC.


The transformer works on the principle of mutual induction, for which current in one coil must change uniformly. If DC supply is given, the current will not change due to constant supply and the transformer will not work.


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