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In a Transformer,,, Why is the back emf in the primary coil equal to the voltage supplied to the Primary coil

In a Transformer,,,
Why is the back emf in the primary coil equal to the voltage supplied to the Primary coil

Grade:11

1 Answers

Sher Mohammad IIT Delhi
askIITians Faculty 174 Points
7 years ago
If you apply kirchfoff's voltage law to the primary coil of the transformer, you get the back emf equal to supplied voltage. Actually it is not equal, it is a little less than supplied voltage because of resistance of the coil. But in ideal situation we assume resistance to be equal to zero.

Sher Mohammad
B. tech, IIT Delhi
faculty, askiitians

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