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For a domestic AC supply of 220 V at 50 ...

For a domestic AC supply of 220 V at 50 cycles per second, the potential difference between the terminals of a two pin electric outlet in a room is given by

A

`V(t) = 220sqrt(2) cos (100pit)`

B

V(t) = 220 cos (50 t)

C

` V(t) = 220 cos (100 pit)`

D

` V(t) = 220sqrt(2)cos (50 t) `

Text Solution

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The correct Answer is:
A
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