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Question

As given the figure, a series circuit connected across a 200 V, 60 Hz line consists of a capacitor of capacitive reactance 30 Ω, a non-inductive resistor of44 Ω, and a coli of inductive resistance 90Ω and resistance 36Ω. The power dissipated in the coil is?
1139115_96b84276a60a44028ad78253a3e27bf1.png

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Solution

I=VZ=200<0(36+j90)+44+(J30)
Z impedance of ckt =200<080+j60
=200<010037
=237
power dissipation in coil =I2×36
=22×36W
=144W

1311247_1139115_ans_2d2d9d8c2e7f4be2a2d93e34675f4968.png

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