Electrical Systems

R-C Circuit
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V-I     Vr-Vx
Dummy Text Dummy Text im  =  Dummy Text Amp φ  =  Dummy Text °   leading
v is the sinusoidal voltage source. v= v msin(ωt) Using calculus the current will be represented as i= i msin(ωt + φ) i m  =  v m R2 + ( 1 ωC ) 2 φ=tan-1 ( 1ωCR )

In RC series circuit the current leads voltage by angle φ degrees.