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Question
What is an electromagnet? Give three uses of electromagnets.
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Solution
An electromagnet is a coil of insulated wire wound around a piece of a magnetic substance such as soft iron. The magnetic substance acts as a magnet as long as the current flows in the wire.
Uses of electromagnet:
(i) Electromagnets are used in a number of electric appliances such as electric bells and electric buzzers.
(ii) They are used in electric motors, which find wide application in fans, washing machines etc.
(iii) Very strong electromagnets are used in factories and cranes for lifting heavy iron pieces.
Uses of electromagnet:
(i) Electromagnets are used in a number of electric appliances such as electric bells and electric buzzers.
(ii) They are used in electric motors, which find wide application in fans, washing machines etc.
(iii) Very strong electromagnets are used in factories and cranes for lifting heavy iron pieces.
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