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The induced emf can be produced by chang...

The induced emf can be produced by changing

A

strength of the magnetic field

B

area of the coil rotating in a field

C

direction of the magnetic field

D

either 'a' or 'b' or 'c'

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Verified by Experts

The correct Answer is:
D
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Consider the following statements: (a)An emf can be induced by moving a conductor in a magnetic field. (b)An emf can be induced by changing the magnetic field.

STATEMENT - 1 : A bar magnet is released from rest along the axis of a very long, vertical copper tube. After some time the magnet will move will more with almost constant speed. STATEMENT - 2 : An emf can be induced by moving a conductor in a magnetic field. STATEMENT - 3 : An emf can be induced by changing the magnetic field.

Read the following two statements. (A) Emf can be induced by changing magnetic field. (B) Emf must be induced when a conductor is moved inside magnetic field.

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NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. The magnitude of induced emf during electromagnetic induction, is dire...

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  2. Whenever the magnet flux linked with a coil changes, then is an induce...

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  3. The induced emf can be produced by changing

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  4. The magnitude of induced e.m.f. in a conductor, depends upon

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  5. Faraday's law are consequence of conservation

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  6. When a coil is rotated in a magnetic field, with steady speed, then

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  7. The induced emf produced when a magnet is inserted into a coil does no...

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  8. If a straight conductor is moved with a uniform velocity at right angl...

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  9. If a conductor is rotating about its one end in a uniform magnetic fie...

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  10. The direction of the induced e.m.f. is determined by

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  11. The phenomenon of electromagnetic induction was discovered by

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  12. Magnetic flux through a coil depends upon

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  13. If any surface is parallel to magnetic lines of forces, then magnetic ...

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  14. Negative sign appearing in Faraday's law of electromagnetic induction ...

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  15. A magnet is moved towards a coil (i) quickly (ii) slowly, then the ind...

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  16. A coil is being moved towards a stationary magnet (i) rapidly (ii) slo...

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  17. When a magnet is moved with its south pole towards the coil, then the ...

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  18. When a magnetic is moved with its N pole away from the coil, then the ...

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  19. Which of the following phenomenon makes use of electromagnetic inducti...

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  20. Induced emf can be produced by

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