Chapter 66 of 2364 min read
AC through R, L, C and LCR circuits
Why this is asked: In a pure inductor, current lags voltage by 90°; in a pure capacitor, it leads by 90° — remembered as 'ELI the ICE man' (in L, voltage E leads current I; in C, current I leads voltage E).
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- •To an AC power supply of 220 V at 50 Hz, a resistor of capacitor of reactance and an inductor of reactance are connected in series. The corresponding current in the circuit and the phase angle between the current and the voltage are, respectively:
- • capacitor is connected to a 210 V, 50 Hz source. The peak current in the circuit is nearly (take ):
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