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Consider the following statements: (a)An...

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.

A

Both A and B are true

B

A is true but B is false

C

B is true but A is false

D

Both A and B are false

Text Solution

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The correct Answer is:
A
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DC PANDEY-ELECTROMAGNETIC INDUCTION-Check point
  1. A rectangular coil rotates about an axis normal to the magnetic field,...

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  2. A metallic square loop ABCD is moving in its own plane with velocity v...

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  3. Consider the following statements: (a)An emf can be induced by moving ...

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  4. The SI unit of inductance, the henry can be written as :

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  5. A long solenoid has 500 turns. When a current of 2A is passed through ...

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  6. If a current of 10 A changes in one second throught a coil, and the in...

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  7. When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 v...

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  8. The current passing through a choke coil of 5 hery is decreasing at th...

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  9. In a coil of self-inuctance 0.5 henry, the current varies at a constan...

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  10. The self inductance of a long solenoid cannot be increased by

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  11. Self-inductance of a coil is 50mH. A current of 1 A passing through th...

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  12. The self inductance of a coil is L . Keeping the length and area same,...

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  13. In circular coil, when no. of turns is doubled and resistance becomes ...

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  14. The self inductance of a solenoid of length L, area of cross-section A...

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  15. A solenoid has 2000 turns would over a length of 0.30 m. The area of i...

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  16. A 50 mH coil carries a current of 2 ampere. The energy stored in joule...

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  17. In an inductor of inductance L=100mH, a current of I=10A is flowing. T...

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  18. Two pure inductors each of self-inductance L are connected in parallel...

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  19. Two coils X and Y are placed in a circuit such that when the current c...

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  20. Two coils have a mutual inductance 0.005 H. The current changes in the...

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