Find the effective input impedance (magnitude) of the circuit shown above given that R1=11000Ω, R2=66000Ω, XL=3100Ω and Xc=5400Ω

Find the rms voltage across the inductor if R=5500Ω, Xc=5400Ω, XL=3100Ω; both E1 and E2 are 310V with E2 leading E1 by 30° 

The above circuit is powered by a 760V AC power supply. Given that R = 5500Ω, XL = 3100Ω and Xc = 5400Ω, find the rms voltage Vm measured by the voltmeter.

Given that R₂ = 8500Ω and X_C = 6800Ω. Find the Thevenin equivalent voltage of the following circuit as seen from the a-a' terminals

Find the magnitude of the equivalent impedance in the following circuit at 72 Hz given that L = 0.177H and C = 15.3μF