Question

The household supply of electricity is at 220V rms value and 50 Hz .Calculate the peak voltage and the
minimum possible time in which the voltage can change from the rms value to zero.
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Answer 1

V=e/f

V=220/50

V=4.5

Therefore the electric was 220and ferquecy was 50 they divde each other by forrmula and 4.5 was the charge