Key Topic 54: Resonance - Tuning Networks

Question 1

3-54G1: What is an L-network?

A. A low power Wi-Fi RF network connection
B. A network consisting of an inductor and a capacitor.
C. A “lossy” network.
D. A network formed by joining two low pass filters.

Answer 1

B. A network consisting of an inductor and a capacitor.

Question 2

3-54G2: What is a pi-network?

A. A network consisting of a capacitor, resistor, and inductor.
B. The Phase inverstion stage.
C. An enhanced token ring network.
D. A network consisting of one inductor and two capacitors or two inductors and one capacitor.

Answer 2

D. A network consisting of one inductor and two capacitors or two inductors and one capacitor.

Question 3

3-54G3: What is the resonant frequency in an electrical circuit?

A. The frequency at which capacitive reactance equals inductive reactance.
B. The highest frequency that will pass current.
C. The lowest frequency that will pass current.
D. The frequency at which power factor is at a minimum.

Answer 3

A. The frequency at which capacitive reactance equals inductive reactance.

Question 4

3-54G4: Which thre network types are commonly used to match an amplifying device to a transmission line?

A. Pi-C network, pi network, and T network.
B. T network, M network, and Z network.
C. L network, pi network, and pi-L network.
D. L network, pi network, and C network.

Answer 4

C. L network, pi network, and pi-L network.

Question 5

3-54G5: What is a pi-L network?

A. A Phase Inverter Load network.
B. A network consisting of two inductors and two capacitors.
C. A network with only three discrete parts.
D. A matching network in which all components are isolated from ground.

Answer 5

B. A network consisting of two inductors and two capacitors.

Question 6

3-54G6: Which network provides the greatest harmonic suppression?

A. L network.
B. Pi network.
C. Pi-L network.
D. Inverse L network.

Answer 6

C. Pi-L network.