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Phasor diagram of a series AC circuit is...

Phasor diagram of a series `AC` circuit is shown in figureure. Then,

A

The circuit must be containing resistor and capacitor only

B

The circuit must be containing resistor and inductor only

C

The circuit must be containing all three elements L, C and R

D

The circuit cannot have only capacitor and inductor

Text Solution

Verified by Experts

The correct Answer is:
D
In case of only capacitor and inductor phase difference between current and voltage should be `90^@`
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DC PANDEY ENGLISH-ALTERNATING CURRENT-Level - 1 Objective
  1. A DC ammeter cannot measure alternating current because

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  2. As the frequency of an alternating current increases, the impedance of...

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  3. Phasor diagram of a series AC circuit is shown in figureure. Then,

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  4. The rms value of an alternating current

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  5. In an AC circuit, the applied potential difference and the current flo...

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  6. The impedasnce of sereis L-C-R circuit in an AC circuit is

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  7. If V0 and I0 are the peak current and voltge across the resistor in a ...

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  8. A generator produces a time varying voltage given by V=240 sin 120 t, ...

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  9. An L-C-R series circuit has a maximum current of 5A. If L=0.5H and C=8...

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  10. The current and voltage functions in an AC circuit are i=100 sin 100...

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  11. A capacitor becomes a perfect insulator when the current is

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  12. For an alternating voltave V=10 cos 100 pit volt, the instantenous vol...

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  13. In a purely resistive AC circuit,

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  14. Identify the graph which correctly reperesents the variation of capaci...

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  15. In an AC circuit, the impedance is sqrt3 times the reactance, then the...

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  16. Voltage applied to an AC circuit and current flowing in it is given by...

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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. In the circuit shown in figureure, the reading of the AC ammeter is ...

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  19. An AC voltage is applied acrss a series combination of L and R. If the...

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  20. For wattless power is an AC circuit, the phase angle between the curre...

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