Permanent magnets are the substances having the property of.
Paramagnetism at room temperature for a long period of time
Anti ferromagnetism at room temperature for a long period of time
Diamagnetism at room temperature for a long period of time
Ferromagnetism at room temperature for a long period of time
A
Paramagnetism at room temperature for a long period of time
B
Ferromagnetism 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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The correct option is A Ferromagnetism at room temperature for a long period of time Permanent magnets are those substances that retain their ferromagnetic property for a long period of time at room temperature.
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