Fundamentals of Engineering Electrical Circuits and Systems 2

Question 1

In a series RLC circuit at resonance, what is the impedance?

Accepted Answer

Equal to R (purely resistive)

Answer

Zero

Answer

Maximum

Answer

Equal to the inductive reactance

Question 2

What is the power dissipated in a resistor of 10 Ω carrying a current of 3 A?

Accepted Answer

90 W

Answer

30 W

Answer

900 W

Answer

3 W

Question 3

What type of filter passes low frequencies and attenuates high frequencies?

Accepted Answer

Low-pass filter

Answer

High-pass filter

Answer

Band-pass filter

Answer

Band-stop filter

Question 4

Norton's equivalent circuit consists of:

Accepted Answer

A current source I_N in parallel with a resistance R_N

Answer

A voltage source in series with a resistance

Answer

Two current sources in parallel

Answer

An inductor in parallel with a resistor

Question 5

For a transformer with a turns ratio N₁:N₂ = 1:10, if the primary voltage is 120 V, what is the secondary voltage?

Accepted Answer

1,200 V

Answer

12 V

Answer

120 V

Answer

10 V

Question 6

What does the Bode plot display on its vertical and horizontal axes?

Accepted Answer

Magnitude (dB) and phase (degrees) vs. log frequency

Answer

Time vs. amplitude

Answer

Voltage vs. current

Answer

Power vs. resistance