Question

State two causes of energy loss in a transformer.

Answer 1

Two causes of energy loss in a transformer are:

1. Heat loss due to copper: It is the heat energy loss across the resistance of copper winding used in the primary and secondary coil.
2. Hysteresis loss: The loss because of the heating up of the core due to its repeated cycles of magnetization and demagnetization when an alternating emf is applied across the primary coil.

Final answer: Thus two causes of energy loss in a transformer are heat loss and hysteresis loss.