1.

Define transformer ans transformation ratio.

Answer»

Transformer—It is a device which is used to convert law alternating voltage at higher current into high alternating voltage at lower current and vice-versa.

It works on the principle of mutual induction.

Transformation ratio—It is ratio of number of turns in secondary coil (NS ) and number of turns in primary coil (NP).

K = Ns/Np  where, k is transformation ratio.



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