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An a.c. source is of 120 volts, 60 Hz . ...

An a.c. source is of 120 volts, 60 Hz . The value of the voltage after `1//360` sec. from the start will be

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Knowledge Check

  • An ac source is of (200)/(sqrt(2)) V, 50 Hz. The value of voltage after (1)/(600)s from the start is

    A
    `200 V`
    B
    `(200)/(sqrt(2))V`
    C
    `100 V`
    D
    `50 V`

  • An AC source is 120 V-60 Hz. The value of voltage after 1/720 s from start will be

    A
    20.2 V
    B
    42.4 V
    C
    84.8 V
    D
    106.8 V

  • An AC source is rated at 220V, 50 Hz. The time taken for voltage to change from its peak value to zero is

    A
    `50 sec`
    B
    `0.02 sec`
    C
    `5 sec`
    D
    `5xx10^(-3)sec`

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    A series LCR circuit is connected top an AC power source of 220 V , 50 Hz. The values of L and R are 0.41 H and 80 Omega respectively. What is the value of C if current and voltage are in phase ?

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    An alternating voltage voltage source is connected, in an A.C. circuit whose maximum value is 170 volt. The value of potential at a phase angle of 45^(@) will be –

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