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The magnetic field at the centre of the ...

The magnetic field at the centre of the current carrying coil is

A

directed normal to plane of the coil

B

directed parallel to plane of the coil

C

Zero

D

radial from centre of the coil

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The correct Answer is:
A
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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
  1. A current carrying coil is placed with its plane in the magnetic merid...

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  2. The magnetic dipole moment of current loop is independent of

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  3. The magnetic field at the centre of the current carrying coil is

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  4. A circular coil of radius r having number of turns n and carrying a cu...

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  5. Biot-Savart law indicates that the moving electrons ("velocity" vec(v)...

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  6. An electron is projected with uniform velocity along the axis of a cur...

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  7. In a cyclotron, a charged particle

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  8. The gyro-magnetic ratio of an electron in an H-atom, according to Boh ...

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  9. A current carrying coil is subjected to a uniform magnetic field. The ...

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  10. Energy in a current carrying coils is stored in the form of (a) elec...

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  11. The magnetic field dB due to a small element at a distance r and carry...

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  12. A current loop consists of two identical semicircular parts each of ra...

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  13. Two similar coils of radius R are lying concentrically with their plan...

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  14. An electron moving in a circular orbit of radius r makes n rotations p...

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  15. A wire carrying current I has the shape as shown in adjoining figure. ...

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

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  17. A positively charged disk is rotated clockwise as shown in Fig. The di...

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  18. A proton of mass m and charge q enters a magnetic field B with a veloc...

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  19. The correct curve between the magnetic induction (B) along the axis of...

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  20. Which of the following particle will have minimum frequency of revolut...

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