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If E0 represents the peak value of the v...

If `E_0` represents the peak value of the voltage in an a.c. circuit, the rms value of the voltage will be ......

A

`E_0/pi`

B

`E_0/2`

C

`E_0/sqrtpi`

D

`E_0/sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
D
`E_(rms) =E_0/sqrt2`
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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
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  2. In an a.c. circuit , peak value of voltage is 423 volt. Its effective ...

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  3. If E0 represents the peak value of the voltage in an a.c. circuit, the...

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  4. The peak value of 220 volts of a.c. mains is ...... volt.

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  5. In an A.C. circuit of inductance 50 mH with negligible resistance and ...

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  6. An alternating current is given by the equation i = (i1 cos omegat + i...

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  7. In a circuit, the value of the alternating current is measured by hot ...

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  8. The frequency of an alternating voltage is 50 cycles/s and its amplitu...

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  9. For a series L-C-R a.c.circuit at resonance, the statement which is no...

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  10. An A.C. circuit consists of an Indicator of inductance 0.5H and a capa...

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  12. The resonant frequency of a circuit is f. If the capacitance is made 4...

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  13. An L-C-R series circuit with R = 100Omega is connected to a 200 V, 50 ...

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  14. As shown in figure series L-C-R circuit , when driven by an emf source...

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  15. A transistor oscillator using a resonant circuit with an inductor L (o...

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  16. The A.C. voltage and the current in a circuit are given by the followi...

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  17. In the transmission of a.c. power through transmission lines, when the...

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  18. As shown in the figure, series combination of ideal capacitor, pure re...

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  19. Three series A.C. circuits (i) RC (ii) RL and (iii) LC (where values o...

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  20. For one series A.C. circuit, its reactance is equal to its resistance....

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