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

it can produce stronger magnetic field

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it can easily get demagnetized

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it is not expensive

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

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.

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.