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A sinusoidal alternating current of peak...

A sinusoidal alternating current of peak value `(I_0)` passes through a heater of resistance R. What is the mean power output of the heater?

A

`(l_(0)^(2)R)/(2)`

B

`(l_(0)^(2)R)/(sqrt(2))`

C

`2l_(0)^(2)R`

D

`sqrt(2)l_(0)^(2)R`

Text Solution

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The correct Answer is:
A
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AAKASH INSTITUTE-ALTERNATING CURRENT -Assignment (Section - A) ( Objective Type Questions ( One option is correct))
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  2. An LC series circuit with an inductance L and a capacitance C has an o...

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  4. The resonance frequency of a certain RLC series circuit is omega(0) . ...

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  5. A variable inductor inductor is connected to an AC source. When induc...

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  6. In series LCR AC circuit, the voltage of the source at any instant is ...

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  7. In a series RLC circuit, if the frequency is increased to a very large...

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  8. A series LCR circuit, has equal resistance capacitive reactance. What ...

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  9. Consider an ac circuit where an incandescent light bulb is in series ...

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  10. Which of the following is true for an ideal capacitor connected to a s...

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  11. A power outlet puts out 60 Hz AC. Which of the following statements is...

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  12. A transformer is used to light a 100 W and 110 V lamp from a 220V main...

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  13. In a series lags the applied emf. The rate at which energy is dissipat...

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  14. The core of a transformer is laminated to reduce

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  15. The primary coil of an ideal transformer has 100 turns and the seconda...

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  16. Power factor is one for

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  17. A sinusoidal alternating current of peak value (I0) passes through a h...

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  18. An ac voltage is represented by E=220 sqrt(2) cos (50 pi) t How m...

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  19. What is the ammeter's reading in prob. No. 41 ?

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  20. For an LCR sereis circuit with an angular freequency omega.

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