A coil of wire acts as a dash when current flow through it.
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Explanation:
It consists of a coil of wire wound on an iron piece. The coil acts as an electromagnet. An iron strip with a hammer at one end is kept close to the electromagnet. ... When the iron strip is in contact with the screw, the current flows through the coil which becomes an electromagnet.
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Explanation:
It consists of a coil of wire wound on an iron piece. The coil acts as an electromagnet. An iron strip with a hammer at one end is kept close to the electromagnet. ... When the iron strip is in contact with the screw, the current flows through the coil which becomes an electromagnet
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