19.What is electromagnet? On what factors the strength of an electromagnet
depends?
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Answer:
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil
Explanation:
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Answer:
A strong magnetic field produced inside a solenoid can be used to magnetize a piece of magnetic material like soft iron when placed inside the coil . The magnet so formed is known as electomagnet
The strength of an electromagnet depends on: The strength of the current passing through the coil, the greater the current, the greater the strength.
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