RC Circuits - General Questions (2)

In a series RC circuit, when the frequency and the resistance are halved, the impedance

When the frequency of the voltage applied to a series RC circuit is increased, the phase angle

For a certain load, the true power is 150 W and the reactive power is 125 VAR. The apparent power is

A resistor and a capacitor are in series across a 20 V ac source. Circuit impedance is 4.33 k. Current flow in the circuit is

What is the angular difference between +j4 and –j4?

An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist:

In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is

The complex number 6 + j6 is equivalent to