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The peak voltage in a 220 V AC source is...

The peak voltage in a `220 V AC` source is

A

`220V`

B

about 160V

C

about 310V

D

440 V

Text Solution

Verified by Experts

The correct Answer is:
C
`V_(0) =sqrt2 V_(rms) = -220sqrt2 = 310 V` .
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CP SINGH-ALTERNATING CURRENT-EXERCISES
  1. The peak voltage in a 220 V AC source is

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  2. An alternating emf given by V = V(0) sin omegat has peak value 10 volt...

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  3. The average emf during the positive half cycle of an ac supply of peak...

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  4. The rms value of an ac of 50Hz is 10A. The time taken by an alternatin...

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  5. An ac ammeter is used to measure currnet in a circuit. When a given di...

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  6. The rms value of the emf given by E = 8 sin omegat + 6 sin 2omegat .

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  7. An AC is given by the equation i=i(1)cos omegat+i(2)sin omegat. The r....

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  8. A direct current of 5 amp is superimposed on an alternating current I=...

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  9. An AC source is rated 220 V, 50 Hz. The average voltage is calculated ...

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  10. The magnetic field energy in an inductor changes from maximum value to...

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  11. An AC source producing emf epsilon = epsilon0 [cos(100 pi s^(-1)) t ...

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  12. What reading would you expact of a square-wave current, suitching rapo...

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  13. The heat produced in a given resistor in a given time by the sinusoida...

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  14. An alternating current having peak value 14 A is used to heat a metal ...

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  15. An alternating voltage V =200sqrt2 sin 100 t where V is in volt and t ...

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  16. What is the r.m.s. value of an alternating current which when passed t...

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  17. A constant current of 2.8 A exists in a resistor. The rms current is

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  18. Choose the currect option .

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  19. The rms value of potential difference V shown in the figure is

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  20. Which one of the follwing represents the variation of capacitive react...

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