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Two inductors each of inductance L are j...

Two inductors each of inductance `L` are joined in parallel. Their equivalent inductance is

A

zero

B

2 L

C

L/2

D

L

Text Solution

Verified by Experts

The correct Answer is:
C
`L_P=(L_1L_2)/(L_1+L_2)`
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NARAYNA-ELECTROMAGNETIC INDUCTION-EXERCISE-1 (C.W)
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  2. A solenoid have self inductance 2H. If length of the solenoid is doubl...

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  3. A solenoid is wound over a rectangular frame. If all the linear dimens...

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  4. Two coils A and B having turns 300 and 600 respectively are placed nea...

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  5. The number of turns of primary and secondary coils of a transformer ar...

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  6. Two conducting circular loops of radii R1 and R2 are placed in the sa...

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  7. If the length and area of cross-section of an inductor remain same but...

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  8. Two inductors each of inductance L are joined in parallel. Their equiv...

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  9. An air-cored coil has a self-inductance of 0.1 H. A soft iron core of ...

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  10. A solenoid is 1.5 m long and its inner diameter is 4.0 cm . It has thr...

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  11. A coil of wire of a certain radius has 600 turns and a self-inductance...

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  12. Two coils are at fixed location: When coil 1 has no corrent and the cu...

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

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  14. A coil of 100 turns carries a current of 5mA and creates a magnetic fl...

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  15. A solenoid of lenght 30 cm with 10 turns per centimetre and area of cr...

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  16. A coil has self inductance of 0.01 H. The current through it is allowe...

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  17. The average self-induced emf in a 25m H solenoid when the current in i...

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  18. Two inductors each of inductance L are joined in parallel. Their equiv...

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  19. A coil of 100 turns with a current of 5A produce a magnetic flux of 1 ...

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  20. In an inductance coil the current increases from zero to 6 ampere in 0...

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