Hysteresis loops for two magnetic materials A and B are given below:

These materials are used to make magnets for electric generators, transformer core and electromagnet core. Then it is proper to use

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A for electromagnets and B for electric generators

A for transformers and B for electric generators

B for electromagnets and transformers

A for electric generators and transformers

answer is C.

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Detailed Solution

The hysteresis loop for material B is narrow. Material B is preferred for cores of transformers and electromagnets because of its low hysteresis loss.

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