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In an a.c circuit, V & I are given by V ...

In an a.c circuit, `V` & I are given by `V = 100 sin (100 t)` volt.
`I = 100 sin (100 t + (pi)/(2)) mA`
The power dissipated in the circuit is:

A

`10^(4)` W

B

10 W

C

2.5 W

D

5 W

Text Solution

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The correct Answer is:
C
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MOTION-ALTERNATING CURRENT-EXERCISE - 2 (LEVEL - I)
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  6. The value of alternating e.m.f. is e = 500 sin 100pit, then the freque...

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  9. A capacitor C with a charge Q(0) is connected across an inductor throu...

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  15. The power factor of the circuit in fig. is 1//sqrt(2). The capacitance...

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  16. An L-C-R series circuit with 100Omega resistance is connected to an AC...

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  17. A current of 4A flows in a coil when connected to a 12V DC source. If ...

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  18. A capacitor C=2muF and an inductor with L = 10 H and coil resistance 5...

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