Physics, asked by Dikshow3290, 11 months ago

If a copper ring is moved quickly towards south pole of a powerful stationary bar magnet, then(a) Current flows through the copper ring(b) Voltage in the magnet increase(c) Current flows in the magnet(d) Copper ring will get magnetised

Answers

Answered by abhi178
8
answer : option (a) current flows through the copper ring.


explanation : we know, induced current flows through coil when magnetic flux changes.
and magnetic flux can be changed by the following methods :
1. by changing magnetic field,
2. by changing cross sectional area ,
3. by rotating of coil.

if a copper ring is moved quickly towards south pole of a powerful stationary bar magnet, then magnetic flux through ring fluctuate quickly , due to this a induced emf produced into the ring and hence, induced current flows through the copper ring.
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