Physics-

General

Easy

Question

# Which of the following is represented by the area enclosed by a hysteresis loop (B-H curve)?

- Permeability
- Retentivity
- Heat energy lost per unit volume in the sample
- Susceptibility

## The correct answer is: Heat energy lost per unit volume in the sample

### Area enclosed by curve represents energy lost. If the area of hysteresis loop is less energy loss is low whereas if the area of hysteresis loop is large energy loss is high.

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