A series ac circuit is shown. The inductor has a reactance of 60 ohms and an ind

Question

A series ac circuit is shown. The inductor has a reactance of 60 ohms and an inductance of 180 mH. A 90 ohm resistor and a capacitor whose reactance is 70 ohms are also in the circuit. The rms current in the circuit is 1.4 A. In the figure, the voltage amplitude across the capacitor is closest to: A series ac circuit is shown. The inductor has a reactance of 60 ohms and an inductance of 180 mH. A 90 ohm resistor and a capacitor whose reactance is 70 ohms are also in the circuit. The rms current in the circuit is 1.4 A. In the figure, the voltage amplitude across the capacitor is closest to:

Explanation / Answer

Given Current throgh the circuit

I=1.4 A

reactance of capacitor

XC=70 ohms

Voltage across inductor is

VC=I*XC =1.4*70

VC=98 V

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