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A coil of 40 Omega resistance, 100 turns...

A coil of `40 Omega` resistance, 100 turns and radius 6 mm is connected to ammeter of resistance 160` Omega`. Coil is placed perpendicular to the magnetic field. When coil is taken out of the field, `32muC` charge flows through it.
The intensity of magneic field will be

A

6.55 T

B

5.66 T

C

0.655 T

D

0.566 T

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE-II
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  10. A copper disc of radius 0.1 m is rotated about its natural axis with 1...

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  13. A coil has a self-inductance of 0.05 henry. Find magnitude of the emf ...

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  14. A long solenoid has 1000 truns. When a current of 4A flows through it...

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

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

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

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

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

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

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