7. Write the significance of hysteresis loop.

What do you mean by hysteresis ? Explain hysteresis loop and hysteresis loss.

What does the hysteresis loop represent?

any 3 salient features of hysteresis loop

Area of hysteresis loop of any substance represent:

The areas under the I-H hysteresis loop and B-H hysteresis loop are denoted by $A_1$ and $A_2$, then the ratio of $\frac{A_2}{A_2}$ is given by