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An ac source is connected to a resistive...

An ac source is connected to a resistive circuits. Which of the following statements are false ?

A

Current leads ahead of voltage in phase

B

Current lags behind voltage in phase

C

Current and voltage are in same phase

D

Any of the above may be true depending upon the value of resistance

Text Solution

Verified by Experts

The correct Answer is:
C

When resistance is connected to A.C. Source, then current & volatge are in same phase.
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DISHA PUBLICATION-ALTERNATING CURRENT -Exercise - 1 : CONCEPT BUILDER (Topic 2: A.C Circuits and Power Factor)
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  2. An inductor, a resistor and a capacitor are joined in series with an A...

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  3. Which of the following curves represents the variation of impedence (Z...

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  4. In a series LCR circuit containing an AC voltage source of frequency o...

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  5. In the circuit shown in fig, the resonant frequency is

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  7. Which increase in frequency of an AC supply , the impedance of an L-C-...

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  9. An ideal coil of 10H is connected in series with a resistance of 5(Ome...

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  10. In an LR-circuit, the inductive reactance is equal to the resistance R...

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  11. An inductance L having a resistance R is connected to an alternating s...

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  12. For the circuit shown in the fig., the current through the inductor is...

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  13. In a series combination of R, L and C to an A.C. Source at resonance i...

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  14. A coil of 40 H inductance is connected in series with a resistance of ...

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  15. For a series RLC circuit R=X(L)=2X(C). The impedence of the current an...

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  16. A current of 4 A flows in a coil when connected to a 12 V dc source. I...

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  17. In the circuit shown in fig. X(C ) = 100 Omega,(XL)=200 Omega and R=10...

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  18. An e.m.f. of 15 volt is applied in a circuit containing 5 henry induct...

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  19. An alternating voltage is connected in series with a resistance R and ...

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  20. When an AC source of emf e=E(0) sin(100t) is connected across a circui...

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