Exam 15: Rc Circuits

-The reactive power in Figure 15-1 creates a loss in the form of heat.

Which one of the following polar values is equivalent to 30 + j40?

In an RC circuit, true power equals:

Multiply the following complex numbers: 25 2-36.9°) 14 267°)

In a series RC circuit, impedance is:

Divide the following complex numbers: 10 + j5) / 2 + j4)

Convert the following complex number from rectangular form to polar form: 8 + j6

The amount of total voltage applied to a capacitor affects its capacitive reactance.

Divide the following complex numbers: 500 240° ÷ 10 215°

Subtract the following complex numbers: 15 + j15) - 10 + j8)

In an RC circuit, the power factor is referred to as:

-What is the phase angle of the current in the circuit in Figure ?

The susceptance of a given capacitor decreases as frequency increases.

What is the impedance of a RC circuit consisting of a 56 kΩ resistor in series with a 0.033 µF capacitor ata frequency of 450 Hz?

A series circuit has an applied voltage of 100 V240° and a current of 1 A210°. Determine ZT) total impedance and express in rectangular form.

A 10 mF capacitor will have more capacitive reactance than a 20 mF capacitor in a 60 Hz circuit.

Add the following complex numbers: 75 + j18 and 50 - j9

The frequency at which the capacitive reactance equals the resistance in a low-pass or high-pass filter is called .

-The phase angle in the circuit in Figure 15-3 is:

Multiply the following complex numbers: 1000 2-30° × 200 2-20°