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Temporary and Permanent Magnets

State True or...

Question

State True or False :
A permanent magnet can be made strong by passing current through an insulated coil wound over it .

A

True

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B

False

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Solution

The correct option is A True
When current carrying coil is surrounded over magnet, the new magnetic field strength is result of both initial magnetic strength and induced magnetic strength, thus strength increases

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Temporary and Permanent Magnets

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