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Hysteresis loops for two magnetic matericals `A` and `B` are as given below: `(2016)` These materials are used to make magnets for electric generators, transformer core and electromagent core. Then, it is proper to useA. On substituting the value of `theta`B. A for electromagnets and `B` for electric generatorsC. A for transformers and `B` for electric generatorsD. `B` for electromagnets and transformers |
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Answer» Correct Answer - D We need less retentivity and less coercivity and less coercivity for electronagents and transformers. Hence samll area of hysteresis loop. |
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