A series R-L circuit is connected to 110V ac source.If voltage across resistor is 85V ,find power dissipated in circuit
Since the voltages across the inductor and the resistor are 90° out of phase, we obtain the voltage across the inductor in the phase domain as follows: If the voltage across the resistor is V1
The voltage across the inductor will be jV2
. Assume the voltage of the source is V3
Applying kvL law
For example
Assume
And VR=85 V
Put value
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