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प्रश्न
A bar magnet is dropped through a copper ring acceleration of magnet is
विकल्प
= g
< g
> g
Depends on diameter of ring
MCQ
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उत्तर
Depends on diameter of ring
Explanation:
Because the induced e.m.f in the ring opposes the downward free fall of the bar magnet, acceleration is less than acceleration due to gravity.
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