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Magnetism in substances is caused by...

Magnetism in substances is caused by

A

Orbital motion of electrons only

B

Spin motion of electrons only

C

Due to spin and orbital motion of electrons

D

Hidden magnets only

Text Solution

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The correct Answer is:
C
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NIKITA PUBLICATION-MAGNETISM -MCQs
  1. Current carrying circular loop acts as

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  2. The product of nuber of turns,area of coil and current is

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  3. Magnetism in substances is caused by

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  4. The product of number of turns and current of loop is

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  5. The product of ampere turn and area of coil is

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  6. In a hydrogen atom the electrons revolves round the nucleus 6.8xx10^(1...

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  7. Magnetic moment of coil independent of

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  8. The electron in the hydrogen atom is moving with a speed at 2.3xx10^(6...

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  9. A closely wound solenoid of 1000 turns and area of cross-section 2xx10...

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  10. A circular coil of 300 turns and diameter 14cm carries a current of 15...

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  11. In a hydrogen atom,an electron revolves with a frequency of 6.8xx10^(9...

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  12. A circular coil of radius 4 cm having 20 turns carries a current of 3A...

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  13. A current of 2 ampere is passed in a coil of radius 0.5 m and number o...

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  14. The areas of cross-section of three magnets of same length are A,2AA a...

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  15. Maghnetic dipole moment of revolving electron is

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  16. The ratio of magnetic dipole moment to angular momentum of electron is

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  17. The gyromagnetic ratio of electron is

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  18. Magnetic dipole moment of revolving electron is

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  19. An electron in an atom revolves the nucleus in an orbit of radius 0.53...

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  20. An electron in an atom revolves around the nucleus in an orbit of radi...

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