If the B-H curves of two samples of P and Q o | vedclass

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(B) For a permanent magnet,we require a material with high retentivity (to ensure a strong magnetic field) and high coercivity (so that the magnetizat

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$P$ is suitable for making permanent magnets and $Q$ for making electromagnets.

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(B) For a permanent magnet,we require a material with high retentivity (to ensure a strong magnetic field) and high coercivity (so that the magnetization is not easily wiped out by external fields or temperature changes).For an electromagnet,we require a material with high permeability,high saturation magnetization,and low coercivity (so that it can be easily magnetized and demagnetized) along with a small hysteresis loop area (to minimize energy loss during magnetization cycles).Comparing the given $B-H$ curves,sample $P$ has a wider hysteresis loop,indicating higher retentivity and higher coercivity,making it suitable for permanent magnets.Sample $Q$ has a narrower hysteresis loop,indicating lower coercivity and lower energy loss,making it suitable for electromagnets.Therefore,$P$ is suitable for making permanent magnets and $Q$ is suitable for making electromagnets.

If the $B-H$ curves of two samples of $P$ and $Q$ of iron are as shown below,then which one of the following statements is $CORRECT$?

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