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A current loop in a magnetic field...

A current loop in a magnetic field

A

can be in equilibrium in one orientation

B

can be in equilibrium in two orientations both the equilibrium states are unstable

C

can be in equilibrium in two orientations, one stable while the other is unstable

D

experiences a torque whether the field is uniform or non-uniform in all orientations

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The correct Answer is:
C
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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
  1. Arigid circular loop of radius r nnd mass m lies in the x - y plane on...

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  2. A current carrying circular coil, suspended freely in a uniform extern...

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  3. A current loop in a magnetic field

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  4. A square loop ABCD carrying a current i, is placed near and coplanar w...

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  5. In the above question the torque on the coil is

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  6. A circular coil of n turns and area of crosssection A , carrying a cur...

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  7. A moving coil type of galvanometer is based upon the principle that a ...

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  8. If 'G' is the resistance of the galvanometer, then its voltage sensiti...

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  9. The best method to increase the sensitivity of a moving coil galvanome...

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  10. A conducting wire of given length is used to prepare the 'coil' of a m...

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  11. In a moving coil galvanometer a radial magnetic field is obtained with...

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  12. When a current is passed in moving coil galvanometer, the coil gets de...

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  13. The current that must flow through a galvanometer to have a deflection...

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  14. To double the torque acting on a coil of n-turns, when placed in a mag...

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  15. A tangent galvanometer shows no deflection when a current is passed th...

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  16. A) Tangent galvanometer is a moving magnet type galvanometer B) Tang...

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  17. The plane of the coil of tangent galvanometer is kept parallel to magn...

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  18. A) In Tangent galvanometer the circular frame is rotated until the pla...

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  19. In case of Tangent galvanometer A) The galvanometer reduction factor...

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  20. If 'r' is the radius and 'n' is number of turns of coil of a T.G, then...

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