Question

A soft iron piece is in the form of a closed ring (no free ends). A wire is wound over it to make it an electromagnet. What happens when current is passed in the wire ?
(a) It does not get magnetised.
(b) It gets temporarily magnetised.
(c) It becomes magnetised.
(d) It can be magnetised if broken into two parts.

  • Category: Magnetism ICSE Class 9
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Answer

(c) It becomes magnetised

Reason — When the current flows through the soft iron piece in the form of a closed ring, it becomes magnetised. The north and south poles will be present on opposite sides of the ring.

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