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Question

The soft iron is used as the core of an electromagnet because


A

it can produce stronger magnetic field

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B

it can easily get demagnetized

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C

it is not expensive

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D

it produces weak magnetic field

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Solution

The correct options are
A

it can produce stronger magnetic field


B

it can easily get demagnetized


The soft iron inside the coil makes the magnetic field stronger because it becomes a magnet itself when the current is flowing. It loses its magnetism as soon as the current stops flowing.


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