# Determining factors in Electric Circuits

# Determining factors in Electric Circuits

1. Find the equivalent impedance Z_{AB} for the circuit

1.

2. Determine the voltage v(t) (the voltage across the

inductor) in circuit 2 (note that v(t) is voltage in the time domain. Assume

f=60Hz)

3. Determine the reactance needed to be added to a load connected

to a load connected to a 480 VAC_{rms} source in order to bring the

power factor to 1. The power absorbed by the load is 2kW and the initial load

power factor is 0.5 lagging.

Also determine the current in the power factor adjusted

load, neglecting any line impedance and assuming the source voltage phasor has

an angle of 0 degrees.

4. Find the RMS current I_{o} in circuit 3.

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