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Q.

The material used for making electromagnets is


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a

Steel

b

Soft iron

c

Nickel

d

Copper 

answer is B.

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Detailed Solution

The material used for making electromagnets is soft iron.
An electromagnet is a magnet in which an electric current generates a magnetic field. It has a wire coil wrapped around the iron core. An electromagnet can be prepared using soft iron as it has low retentivity, which helps in the demagnetization process. Thus, soft iron material is used for making electromagnets.
 
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