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A generator produces a time varying volt...

A generator produces a time varying voltage given by `V=240 sin 120 t,` where `t` is in second. The rms voltage and frequency are

A

60Hz and 240V

B

189Hz and 120V

C

9Hz and 170V

D

754Hz and 70V

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • The relation between an ac voltage source and time in SI units is V=120 sin(100 pi t)cos (100 pi t) V . The value of peak voltage and frequency will be respectively

    A
    120 V and 100 Hz
    B
    `(120)/(sqrt(2)) V` and 100 Hz
    C
    60 and 200 Hz
    D
    60 V and 100 Hz

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