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Difference between Electromagnets and Permanent Magnets

State two adv...

Question

State two advantages of an electromagnet over a permanent magnet.

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Solution

Following are the advantages of an electromagnet over a permanent magnet:

An electromagnet can produce a strong magnetic field.

The strength of the magnetic field of an electromagnet can easily be changed by changing the current in its solenoid

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Similar questions

State two advantages of an electromagnet over a permanent magnet.

Q. Which of the following is not true about the advantages of electromagnet over permanent magnet?

Q. The main advantage of a permanent magnet over an electromagnet is that a permanent magnet does not require a continuous supply of electrical energy to maintain its magnetic field.
State whether the above statement is true or false?

Q. You have been provided with a solenoid

A B

.
(i) What is the polarity at end

A

?
(ii) Give one advantage of an electromagnet over a permanent magnet.

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Difference between Electromagnets and Permanent Magnets

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