There are two materials \(A\) and \(B\). The material \(B\) have high coercivity and \(A\) have low coercivity. The hysteresis loop area of material \(A\) is lesser than the material \(B\). Then:
1.
material \(A\) is preferred for making electromagnets.
2.
material \(B\) is preferred for making permanent magnets.
3.
material \(A\) is preferred for using electric generators and transformers.
4.
all of these.
Subtopic: Â Magnetization & Magnetic Intensity |
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