W walters Banned Jun 9, 2005 #21 So how does a Capacitor get its phase shift ? From the charging and dischanging is that the phase shift?
So how does a Capacitor get its phase shift ? From the charging and dischanging is that the phase shift?
L ljcox Well-Known Member Jun 9, 2005 #22 A capacitor has a 90 degree phase shift between the current and voltage. This is because the voltage (V) across the cap is proportional to the charge (Q) stored in the Cap. Q = CV Current is the rate of flow of charge, I = dQ/dt where t = time. So when a cap is charging, charge is flowing into it. This takes time so the voltage rises gradually. Therefore the voltage lags the current. Len
A capacitor has a 90 degree phase shift between the current and voltage. This is because the voltage (V) across the cap is proportional to the charge (Q) stored in the Cap. Q = CV Current is the rate of flow of charge, I = dQ/dt where t = time. So when a cap is charging, charge is flowing into it. This takes time so the voltage rises gradually. Therefore the voltage lags the current. Len
niga New Member Jun 9, 2005 #23 the phase difference is the difference between the current and voltage.in the case of a capacitor its current leads voltage by 90 deg.
the phase difference is the difference between the current and voltage.in the case of a capacitor its current leads voltage by 90 deg.