Electromagnetic Induction - Result Question 4
4. A thin semicircular conducting ring
[2014]
(a) Zero
(b)
(c)
(d)
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Answer:
Correct Answer: 4. (d)
Solution:
- (d) Rate of decreasing of area of semicircular
ring
From Faraday’s law of electromagnetic induction
As induced current in ring produces magnetic field in upward direction hence
