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Question
For making a strong electromagnet, the material of the core should be:
For making a strong electromagnet, the material of the core should be:
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Solution
The correct option is A Soft iron
The soft iron inside the coil makes the magnetic field stronger because it becomes a magnet itself when current is flowing through the coil.
Moreover, it loses its magnetism as soon as the current stops flowing. It forms a temporary magnet. In this way, the electromagnet can be magnetised and demagnetised by turning the electricity on and off.
Soft iron
The soft iron inside the coil makes the magnetic field stronger because it becomes a magnet itself when current is flowing through the coil.
Moreover, it loses its magnetism as soon as the current stops flowing. It forms a temporary magnet. In this way, the electromagnet can be magnetised and demagnetised by turning the electricity on and off.
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