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A cylindrical bar amgnet is kept along t...

A cylindrical bar amgnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then

A

a current will be induced in the coil

B

no current will be induced in the coil

C

only an emf will be induced in the coil

D

both a current and an emf will be induced in the coil

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The correct Answer is:
B

NA
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CP SINGH-ELECTROMAGNETIC INDUCTION-EXERCISES
  1. A thin circular ring of area A is held perpendicular to a uniform magn...

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  2. A rectangular coil is placed in a region having a uniform magnetic fie...

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  3. A cylindrical bar amgnet is kept along the axis of a circular coil. If...

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  4. A long slenoid of radius 2 cm has 100 turns/cm and carries a current o...

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  5. A conducting loop of cross-area A and resistance R is placed perpendic...

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  6. A square- shaped copper coil has edges of length 50cm and contains 50 ...

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  7. Suppose the resistance of the coil in the previous problem is 25Omega....

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  8. A conducting circular loop is placed in a uniform magnetic field 0.04T...

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  9. A wire loop is rotated in a uniform magnetic field about an an axis pe...

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  10. A short-circuited coil is placed in a time-varying magnetic field. Ele...

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  11. A uniform magnetic field B exists in a cylindrical region of radius I0...

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  12. A circular coil of radius 2.00cm has 50 turns. A uniform magnetic fiel...

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  13. A circular coil of one turn of radius 5.0cm is rotated about a diamete...

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  14. A magnet is brought towards a coil (i) speedily (ii) slowly then the i...

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  15. The flux linked with a circuit is given by phi=t^(3)+3t-7 . The graph ...

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  16. The magnetic flux (phi) linked with a coil depends on time t as phi=at...

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  17. A rectangular, a square , a circular and an elliptical loop, all in th...

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  18. A magnetic field of 2xx10^(-2)T acts at right angles to a coil of area...

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  19. Faraday's law are consequence of conservation

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  20. A coil having n turns and resistance R Omega is connected with a galva...

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