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a) The peak voltage of an AC supply is 3...

a) The peak voltage of an AC supply is 300 V. What is the rms voltage?
b) The rms value of current in an AC circuit is 10A. What is the peak current?

Text Solution

Verified by Experts

Given, peak value of voltage , `E_(0) = 300` V
rms value of voltage is
`E_(rms) = (E_(0))/(sqrt(2)) = 0.707 xx 300 `
`rArr " " E_(rms) = 212.1 ` V
(b) Given, rms value of current , `I_(rms) = 10 `A
Peak value of current is
`I_(0) = sqrt(2) I_(rms)`
= 1.414 `xx 10 `
`rArr " " I =` 14.14 A
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