What is the purpose of soft iron core used in making an Electromagnet? How is it different from the permanent magnet?
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The soft iron inside the coil makes the magnetic field stronger because it becomes a magnet itself when the current is flowing. Soft iron is used because it loses its magnetism as soon as the current stops flowing. Soft iron is said to form a temporary magnet.!!
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soft iron core loses the magnetism when their is no supply of currenr whereas the permanent magnet does not lose its magnetism
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