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For an LCR series circuit with an aac so...

For an LCR series circuit with an aac source of angular frequency `omega`.

A

Circuit will be capacitive if `omega gt (1)/(sqrt(LC))`

B

Circuit will be inductive if `omega = (1)/(sqrt(LC))`

C

Power factor of circuit will be unity if capacitive reactance equals inductive reactance

D

Current will be leading voltage if `omega gt (1)/(sqrt(LC))`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-ALTERNATING CURRENT -Assignment (Section - A) ( Objective Type Questions ( One option is correct))
  1. The resonance frequency of a certain RLC series circuit is omega(0) . ...

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

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

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

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

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

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  7. the following option is correctfor an ideal capacitor connected to a s...

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

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  9. The ideal meter shown in figure read rms current and voltage. The aver...

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  10. A transformer is used to light a 100W and 110V lamp form a 220V mains....

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

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  12. The core of a transformer is laminated to reduce

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

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  14. Power factor is one for

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

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

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  17. Two resistors are connected across an AC source of 5 V. The P.D. acro...

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  18. In the figure, find the value of the applied voltage

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  19. Refer to the series LCR AC circuit. Find the value of V(3)

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  20. For an LCR series circuit with an aac source of angular frequency omeg...

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