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An alternating voltage (in volts) varies...

An alternating voltage (in volts) varies with time t (in seconds) as `V=200 sin(100pit)`

A

The peak value of the voltage is 200 V

B

The rms value of the voltage is 220 V

C

The rms value of the voltage is `100sqrt(2)V`

D

The frequency of the voltage is 50 Hz

Text Solution

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The correct Answer is:
A, C, D
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Knowledge Check

  • A alternating voltage varies with time (t) as V=100sin(50pit) . The rms voltage and the frequency respectively, are

    A
    `(100)/(sqrt(2))V,50Hz`
    B
    `100V,25Hz`
    C
    `100sqrt(2)V,50Hz`
    D
    `(100)/sqrt(2)V,25Hz`

  • An alternating voltage (in volts) given by V=200sqrt(2)sin(100t) is connected to 1 mu F capacitor through an ideal ac ammeter in series. The reading of the ammeter and the average power consumed in the circuit shall be

    A
    20 mA, 0
    B
    20 mA, 4W
    C
    `20sqrt(2)mA, 8W`
    D
    `20sqrt(2)mA, 4sqrt(2)W`

  • An alternating voltage E (in volts) = 200sqrt2 sin (100t) is connected to a 1 muF capacitor through an a.c. ammeter. The reading of the ammeter shall be

    A
    10 mA
    B
    20 mA
    C
    40 mA
    D
    80 mA

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