Permanent magnets are the substances having the property of
Permanent magnets are the substances having the property of
A. ferromagnetism at room temperature for long period of time.
B. paramagnetism at room temperature for a long period of time.
C. anti ferromagnetism at room temperature for a long period of time.
D. diamagnetism at room temperature for a long period of time.
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Correct Answer - A
Permananet magnets are those substance that retian their ferromagnetic property for a long period of time at room temperature.
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