Exam 12: Rl Circuits

$\text { Figure } 12 < 1$ -If the frequency is 400 Hz in Figure 12-1,What is the inductance?

$\text { Figure } 12 < 1$ -If the operating frequency decreases in Figure 12-1, the inductance ________.

A high-pass filter passes high frequencies and blocks low frequencies.

$\text { Figure } 12 < 1$ -What is the impedance in Figure 12-1?

$\text { Figure } 12 < 1$ -If the frequency decreases in Figure 12-1, the phase angle ________ and the impedance ________.

The source voltage always lags the total current in an RL circuit.

If the frequency increases in an RL circuit, the impedance decreases.

A measured voltage of 0 V across the resistor in a parallel RL circuit Would indicate:

The output at the cut off frequency of a low pass RL filter is 0 V.

$\text { Figure } 12 < 1$ -What is the voltage across the inductor in Figure 12-1?

An RL lag network is similar to a:

An RL high pass filter takes its output across:

$\text { Figure } 12 < 1$ -What is the phase angle in Figure 12-1 ?

If the resistance decreases in an RL filter circuit, the cutoff frequency increases.

The impedance of a series RL circuit is found by directly adding the values of X_L and R .

In a RL circuit, the inductive reactance is:

$\text { Figure } 12 < 3$ -If some of the turns of the inductor in Figure 12-3 have shorted, howW ill the circuit change?

$\text { Figure } 12 < 3$ -If the output is taken across the inductor in Figure 12-3, the circuit is known as a ________.

$\text { Figure } 12 < 1$ -If the operating frequency decreases in Figure 12-1, the phase angle ________.

$\text { Figure } 12 < 1$ -What is the apparent power in Figure 12-1?