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Two coils of self-inductance 2 mH and 8 ...

Two coils of self-inductance 2 mH and 8 mH are placed, so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is

A

10 mH

B

6 mH

C

4 mH

D

16 mH

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The correct Answer is:
C
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AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE-II
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  7. A long solenoid has 1000 truns. When a current of 4A flows through it...

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  8. Calculate the equivalent resistance between the points A and B in Fig.

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  9. If a change in current of 0.01 A in one coil produces a change in ma...

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  10. The current in a coil is changed from 5A to 10A in 10^(-2)s. Then, an ...

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  11. Two coaxial solenods are made by winding thin insulated wire over a pi...

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  12. To emf induced in a secondary coil is 20000 V , when the current bre...

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  13. Two coils of self-inductance 2 mH and 8 mH are placed, so close togeth...

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  14. Two coaxial solenods are made by winding thin insulated wire over a pi...

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  15. A 50 mh coil carries a current of 2 A. the energy stored in joules is

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  17. An ideal coil of 10 H is joined in series with a resistance of 5Omega ...

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  18. A capacitor is connected to a 12 V battery through a resistance of (10...

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  20. A 8 mu F capacitor is charged by a 400 V supply through 0.1 M Omega re...

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