Question

magnetic material used in electromagnets is
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Answer 1

Answer:

ferromagnetic

A simple electromagnet consisting of a coil of wire wrapped around an iron core. A core of ferromagnetic material like iron serves to increase the magnetic field created.

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Answer 2

Answer:

Core of electromagnets are made up of FERROMAGNETIC material which have high permeability and low retentivity.

• SOFT IRON is a suitable material for electromagnets.
• On placing a soft iron rod in solenoid and on passing a current,we increase the magnetism of the solenoid a thousand fold.
• When we switch off the solenoid current,the magnetism is effectively switched off since the soft iron core has a low retentivity.

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