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A magnetic needle is kept in a non unifo...

A magnetic needle is kept in a non uniform magnetic field . It experiences

A

a torque but not a force

B

neither a force nor a torque

C

a force and a torque

D

a force but not a txorque

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The correct Answer is:
C
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MOTION-MAGNETISM -EXERCISE-4 (LEVEL-I)
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  2. A magnetic needle is kept in a non uniform magnetic field . It experie...

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  3. Two concentric coils each of radius equal to 2pi cm are placed at righ...

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  4. Two thin, long, parallel wires, separated by a distance 'd' carry a cu...

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  5. A moving coil galvanometer has 150 equal divisions. Its current sensit...

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  6. In a region, steady and uniform electric and magnetic fields are prese...

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  7. Needles N(1) , N(2), and N(3) are made of a ferromagnetic, a paramagne...

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  8. A charged particle moves through a magnetic field perpendicular to its...

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  9. A current I flows along the lenght of an infinetely long, straight, th...

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  10. A charged particle with charge q enters a region of constant, uniform ...

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  11. A long straight wire of radius a carries a steady current i. The curre...

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  12. Two identical conducting wires AOB and COD are placed at right angles ...

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  14. Relative permittivity and permeability of a material are epsilon(r) ...

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  15. The magnitude of the magnetic field (B) due to loop ABCD at the origin...

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  16. Due to the presence of the current I1 at the origin in the figure.

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  17. Two long parallel wires are at a distance 2d apart. They carry stead...

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  18. A rectangular loop has a sliding connector PQ of length l and resistan...

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  19. A current I flows an infinitely long wire with cross section in the fo...

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  20. A boat is moving due east in a region where the earth's magnetic field...

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