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Write down the equation for a sinusoidal...

Write down the equation for a sinusoidal voltage of 50 Hz and its peak value is 20 V. Draw the corresponding voltage versus time graph.

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f= 50 Hz, `V_(m)` = 20V
Instantaneous voltage, `v=V_(m)sinomegat=V_(m)sin2pivt`
`=20sin(100xx3.14)t`
v=20sin314t
Time for one cycle, `T=1/f=1/50=0.02s`
`=20xx10^(-3)s=20ms`
The wave form is given adjacent.
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