area of the hysteresis loop shown gives

The area of the hysteresis loop gives the energy loss per unit volume per cycle of magnetization of the material (hysteresis loss).

In a magnetic B–H hysteresis loop:

• The loop is traced when a ferromagnetic material is repeatedly magnetized and demagnetized.
• The enclosed area corresponds to the work done (energy expended) in driving the material through one full cycle of magnetization.
• This energy is not recovered; it appears as heat in the material and is called hysteresis loss.

So, for an objective-type question:

“The area of the hysteresis loop shown gives”
Answer: energy loss (hysteresis loss) per unit volume per cycle.