Question

Plz solve....cls 10， Physics

Answer 1

A. Current flowing through the primary and secondary coils will generate heat . Low resistance copper wires is used to reduce this effect.

B. There may be a leakage of magnetic flux in the primary coil a special core design in used in a transformer to ensure that all the primary flux is linked with the secondary coil.

C. The core is magnetised and demagnetised alternately when AC current flows through the primary coil . Energy is lost during this process .This is known as Hysterisis .This effect is reduced by using a soft iron core.