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The coefficient of mutual induction betw...

The coefficient of mutual induction between two coils is `4H`. If the current in the primary reduces from `5A` to zero in `10^(-3)` second, then the induced e.m.f. in the secondary coil will be

A

`10^(4)V`

B

`25xx10^(3)V`

C

`2xx10^(4)V`

D

`15xx10^(3)V`

Text Solution

Verified by Experts

The correct Answer is:
c
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MOTION-ELECTRO MAGNETIC INDUCTION-EXERCISE-1
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  3. The coefficient of mutual induction between two coils is 4H. If the cu...

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  4. The coefficient of mutual induction between two closely lying coil doe...

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  5. Out of the two coils placed near each other, when a current of 2 amp i...

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  6. An inductor may store energy in

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  7. On making a coil of copper wire of length  and coil radius r, the val...

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  8. v34

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  9. The coefficient of coupling between two coil is maximum when the two c...

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  10. Two coils of self-inductance L(1) and L(2) are placed closed to each o...

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  11. The mutual inductance of an induction coil is 5H . In the primary coil...

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  12. The value of coefficient of mutual induction in two coils can be incre...

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  13. If the current in the primary coil is reduced from 3.0 ampere to zero ...

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  14. A solenoid having a core of cross-section 4cm^(2), half air and half i...

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  15. The coefficients of self induction of two inductance coil are 0.01 H a...

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  16. Two identical solenoid coils, each of self inductancen L are connected...

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  17. If two coils of negligible mutual induction and having coefficient of ...

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  18. To transmit electrical energy from a generator to distant consumers

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  19. A step down transformer is used to reduce the main supply of 200 V to ...

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  20. A step up transformer operates on a 230 V line and a load current of 2...

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