How do i find the root mean square voltage of V(t)=140sin(100pit)

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How do i find the root mean square voltage of V(t)=140sin(100*pi*t)

Guest Oct 17, 2014

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Best Answer

I believe that the way to find this is to divide the peak voltage value by √2.

The graph of 140sin(100πt) has a maximum value of 140 (since the maximum value for sin is 1).

140/√2 ≈ 98.99 ≈ 100

geno3141 Oct 17, 2014

geno3141 · Answer 1 · 2014-10-17T02:44:52

I believe that the way to find this is to divide the peak voltage value by √2.

The graph of 140sin(100πt) has a maximum value of 140 (since the maximum value for sin is 1).

140/√2 ≈ 98.99 ≈ 100

How do i find the root mean square voltage of V(t)=140sin(100*pi*t)