Find the effective value of current. `i=2 sin 100 (pi)t + 2 cos (100 p

1.	Find the effective value of current. `i=2 sin 100 (pi)t + 2 cos (100 pi t + 30^(@))`.
Answer» The equation can be written as `I = 2 sin 1000 pit +2 sin(100 pit+90^(@))`. so phase difference `phi=120^(@)` `I_(m))_(res)=sqrt(A_(1)^(2)+A_(2)^(2)+2A_(1)A_(2)costheta)` `=sqrt(4+4+2xx2xx2(-1/2))=2`so effective value or `rms` value =`2//sqrt2=sqrt2A`

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Find the effective value of current. `i=2 sin 100 (pi)t + 2 cos (100 pi t + 30^(@))`.

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