A capacitor in series with a resistor is connected to a 110V-60 Hz supply. What is the maximum current in the circuit? What is the time lag between current maximum and voltage maximum?
3.24 A, 1.55 ms
The maximum (peak) current in a C-R circuit is given by
In C-R circuit, the voltage lags behind the current by a phase angle , where
Putting the value of , C and R, we get
The time lag is given by
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