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A copper ring is held horizontally and a...

A copper ring is held horizontally and a bar magnet is dropped through the ring with its length along the axis of the ring. The acceleration of the falling magnet while it is passing through the ring is

A

Equal to that due to gravity

B

Less than that due to gravity

C

More than that due to gravity

D

Depends on the diameter of the ring and the length of the magnet

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE - I (MAGNETIC FLUX, FARADAY.S LAW, LENZ.S LAW, AC GENERATOR)
  1. A cylindrical bar magnet is kept along the axis of a circular coil. If...

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  2. Two coils C(1) and C(2) are kept coaxially as shown the coil C(1) is c...

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  3. A copper ring is held horizontally and a bar magnet is dropped through...

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  4. A magnet is brought towards a coil (i) speedly (ii) slowly, then induc...

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  5. The north pole of a magnet is brought near a metallic ring as shown in...

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  6. Two similar circular loops carry equal currents in the same direction....

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  7. As shown in the figure, à magnet is moved with a fast speed towards a ...

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  8. Two different loops are concentric and lie in the same plane. The curr...

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  9. A magnet is dropped dwon an infinitely long vertical copper tube,

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  10. A magnet N-S is suspended from a spring and while at oscillates, the m...

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  11. An infinitely long cylinder is kept parallel to a uniform magnetic fie...

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  12. Two coils of wires A and B are mutually at right angles to each other ...

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  13. In the given figure, the north pole of a magnet is brought towards a c...

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  14. Two identical circular loops of metal wires are lying on a table witho...

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  15. A circular loop of radius R, carrying current I, lies in x-y plane wit...

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  16. As shown in figure, P and Q are two co-axial conducting loops separate...

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  17. The variation of induced emf (epsilon ) with time (t) in a coil if a s...

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  18. A current carrying wire is placed below a coil in its plane, with curr...

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  19. A conducting bar is pulled with a constant speed v on a smooth conduct...

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  20. A coil is rotated in a uniform magnetic field about an axis perpendicu...

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