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Question

For the circuit diagram shown, capacitive reactance XC=100Ω, inductive reactance XL=200Ω and Resistance R=100Ω. The effective current through the ac source of 200 V is N, then N is

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Solution


KCL ¯i=¯¯¯¯i1+¯¯¯¯i2 (Phasor addition)


Since XL>XC,i2 will lag the voltage
by π2.
i1=V0R=200100=2 Ai2=V0XLXC=200200100=2 Ai0=i21+i22i0=4+4i0=8 A

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