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The energy stored in an inductor of self...

The energy stored in an inductor of self-inductance L henry carrying a current of I ampere is

A

`(1)/(2)L^(2)I`

B

`(1)/(2)LI^(2)`

C

`LI^(2)`

D

`L^(2)I`

Text Solution

Verified by Experts

The correct Answer is:
B
The energy stored in an inductor is
`U=(1)/(2)LI^(2)`
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NCERT FINGERTIPS-ELECTROMAGNETIC INDUCTION-Inductance
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  2. When a rate of change of current in a circuit is unity, the induced em...

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  3. The self inductance of an inductance coil having 100 turns is 20 mH. C...

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  4. The self inductance of a coil having 400 turns is 10 mH. The magnetic ...

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  5. In an inductor of self-inductance L=2 mH, current changes with time ac...

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  6. The equivalent quantity of mass in electricity is

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  7. Two coils of self-inductance 2mH and 8 mH are placed so close togethe...

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  8. If the self inductance of 500 turns coil is 125 mH, then the self indu...

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  9. The unit of inductance is

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  10. If the number of turns per units length of a coils of solenoid is doub...

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  11. Two solenoids of equal number of turns have their lengths and the radi...

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  12. A 10 V battery connected to 5omega resistance coil having inductance 1...

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  13. The equivalent inductance between A and B is

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  14. The equivalent inductance of two inductances is 2.4 henry when connect...

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  15. Two inductors of inductance L each are connected in series with opposi...

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  16. The energy stored in an inductor of self-inductance L henry carrying a...

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  17. A current of 1 A through a coil of inductance of 200 mH is increasing ...

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  18. A 100mH coil carries a current of 1 ampere. Energy stored in its magne...

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  19. By a change of current from 5 A to 10 A in 0.1 s, the self induced em...

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  20. Two different coils have self-inductances L(1) = 8 mH and L(2) = 2 mH....

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