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As shown in the figure, the planes of tw...

As shown in the figure, the planes of two concentric coils are mutually perpendicular. The mutual inductance of this system is …….

A

`mu_0N^2A`

B

`(mu_0NA)/L`

C

zero

D

none of zero

Text Solution

Verified by Experts

The correct Answer is:
C
Passing current `I_1`, through coil-1 produced (induced) magnetic field lines (magnetic flux) is perpendicular to plane of coil -1 and coil-2 is also kept perpendicular to coil-1. So magnetic flux passing through it `phi_2=0`.
Now, `phi_2=M_21 I_1` in `phi_2=0` so `M_21=0`.
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KUMAR PRAKASHAN-ELECTROMAGNETIC INDUCTION-Section D MCQs (From DARPAN Based on Textbook )
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  2. The flux linked with each turn of coil is 0.1 Wb and total number of t...

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  3. As shown in the figure, the planes of two concentric coils are mutuall...

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  4. Two circular coils can be arranged in any of the three situations as s...

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  5. X and Y coils are joined in a circuit in such a way that when the chan...

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  6. A circular coil of radius 5 cm has 500 turns of a wire. The approximat...

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  7. Mutual inductance of two coils can be increased by

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  8. Self inductance of straight conducting wire is

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  9. When current is increasing in the coil, the direction of induced emf i...

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  11. The frequency of A.C. mains in India is ….. Hz.

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  13. The self-inductance of two solenoids A and B having equal length are s...

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  17. Voltage obtained in one A.C. generator V=V0 cos omegat . If V0 = 10 vo...

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  19. A generator produces a voltage that is given by V = 240 sin 120t, wher...

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  20. If an A.C. current of frequency 50 Hz is flowing through a conducting ...

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