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Q.

Two ferromagnetic materials X and Y have hysteresis curves of the shapes as shown in figure. Which of the following option is correct

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a

X is more suitable for making a permanent magnet while Y is suitable for electromagnet.

b

X suitable for making an electromagnet while Y is more suitable for permanent magnet.

c

X and Y are suitable for making a permanent magnet as well as an electromagnet.

d

Neither X nor Y is suitable for making either a permanent magnet or an electromagnet.

answer is C.

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Detailed Solution

X has low retentivity, Y has high retentivity.

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