Question 1

-If the resistance decreases in Figure 13 -2, the bandwidth .

Accepted Answer

A) decreases 
B) varies 
C) remains the same 
D) increases 
A) decreases 
B) varies 
C) remains the same 
D) increases A

Question 2

In a parallel RLC circuit,at resonance the capacitive reactance (XC)and the inductive reactance (XL):

Accepted Answer

A) are moderate. 
B) add to each to cancel current flow. 
C) equal and oppose current flow. 
D) are minimum. 
A) are moderate. 
B) add to each to cancel current flow. 
C) equal and oppose current flow. 
D) are minimum. C

Question 3

For the tuning circuit of a radio frequency receiver, the filter:

Accepted Answer

A) high Q components are not necessary. 
B) bandwidth should be narrow. 
C) need not be highly selective. 
D) any of the above 
A) high Q components are not necessary. 
B) bandwidth should be narrow. 
C) need not be highly selective. 
D) any of the above B

Question 4

The capacitor's resistive effects are significant when considering the Q of an RLC circuit.

Accepted Answer

A) True 
 B)False

Question 5

-As the frequency approaches the resonant frequency in Figure 13 -1, the VR .

Accepted Answer

A) increases 
B) becomes increasingly unstable 
C) remains the same 
D) decreases 
A) increases 
B) becomes increasingly unstable 
C) remains the same 
D) decreases

Question 6

In a parallel resonant RLC circuit, the impedance is and the total current is .

Accepted Answer

A) minimum, maximum 
B) maximum, minimum 
C) minimum, minimum 
D) maximum. maximum 
A) minimum, maximum 
B) maximum, minimum 
C) minimum, minimum 
D) maximum. maximum

Question 7

-If the resistance increases in Figure 13 -2, the bandwidth .

Accepted Answer

A) varies 
B) remains the same 
C) decreases 
D) increases 
A) varies 
B) remains the same 
C) decreases 
D) increases

Question 8

In an ideal parallel resonant circuit, the total current into the L and C branches is .

Accepted Answer

A) low 
B) high 
C) maximum 
D) zero 
A) low 
B) high 
C) maximum 
D) zero

Question 9

-If a resonant circuit has a low Q, it .

Accepted Answer

A) has a small voltage across the capacitor 
B) has a narrow pass -band 
C) tunes sharply 
D) has a wide pass -band 
A) has a small voltage across the capacitor 
B) has a narrow pass -band 
C) tunes sharply 
D) has a wide pass -band

Question 10

When tuning across the resonant frequency of a series RLC band -pass filter, which of the following is true?

Accepted Answer

A) The impedance of the filter should be maximum at resonance. 
B) The output voltage across the load is minimum. 
C) Current flow through the load is minimum. 
D) The impedance of the filter should be minimum at resonance. 
A) The impedance of the filter should be maximum at resonance. 
B) The output voltage across the load is minimum. 
C) Current flow through the load is minimum. 
D) The impedance of the filter should be minimum at resonance.

Question 11

The output voltage of a circuit at 70.7% of its maximum level measured in dB is:

Accepted Answer

A) 7 dB. 
B) -7 db. 
C) 3 dB. 
D) -3 dB. 
A) 7 dB. 
B) -7 db. 
C) 3 dB. 
D) -3 dB.

Question 12

In a parallel RLC just below the resonant frequency, the impedance is:

Accepted Answer

A) at minimum. 
B) more capacitive. 
C) more inductive. 
D) at maximum. 
A) at minimum. 
B) more capacitive. 
C) more inductive. 
D) at maximum.

Question 13

At resonance, the impedance of a series RLC circuit equals its resistance.

Accepted Answer

A) True 
 B)False

Question 14

What is the power at f1 and f2 in a resonant circuit that delivers 120 W?

Accepted Answer

A) 60 W 
B) 17 W at both frequencies 
C) 84.8 W at f1 and 60 W at f2 
D) 84.8 W 
A) 60 W 
B) 17 W at both frequencies 
C) 84.8 W at f1 and 60 W at f2 
D) 84.8 W

Question 15

What is the resonant frequency of a tank circuit with a 150 mH inductor and a 300 pF capacitor?

Accepted Answer

A) 23.7 kHz 
B) 237 kHz 
C) 2.37 MHz 
D) 23.7 Hz 
A) 23.7 kHz 
B) 237 kHz 
C) 2.37 MHz 
D) 23.7 Hz

Question 16

What is the bandwidth of the resonant circuit if the resonant frequency is 1.42 MHz, the inductive reactance is 3.5 kΩ and the coil's resistance is 8 ohm?

Accepted Answer

A) 3.25 kHz 
B) 1.42 MHz 
C) 32.5 kHz 
D) 2285 Hz 
A) 3.25 kHz 
B) 1.42 MHz 
C) 32.5 kHz 
D) 2285 Hz

Question 17

A resonant circuit with a high Q _.

Accepted Answer

A) has a very wide pass -band 
B) has no pass -band 
C) tunes sharply 
D) has a small voltage across the capacitor 
A) has a very wide pass -band 
B) has no pass -band 
C) tunes sharply 
D) has a small voltage across the capacitor

Question 18

The resonant frequency of a tank circuit with a 0.150 mH inductor and 300 pF capacitor is .

Accepted Answer

A) 6.05 MHz 
B) 750 kHz 
C) 1.65 MHz 
D) 347 kHz 
A) 6.05 MHz 
B) 750 kHz 
C) 1.65 MHz 
D) 347 kHz

Question 19

Why does a resistive load increase the bandwidth of a given band -pass filter?

Accepted Answer

A) The resistance decreases the quality of the circuit. 
B) A resistive load actually decreases the bandwidth. 
C) The resistance increases the quality of the circuit. 
D) not enough information 
A) The resistance decreases the quality of the circuit. 
B) A resistive load actually decreases the bandwidth. 
C) The resistance increases the quality of the circuit. 
D) not enough information

Question 20

At resonance, a parallel RLC circuit is capacitive.

Accepted Answer

A) True 
 B)False

-If the resistance decreases in Figure 13 -2, the bandwidth .

In a parallel RLC circuit,at resonance the capacitive reactance (XC)and the inductive reactance (XL):

For the tuning circuit of a radio frequency receiver, the filter:

The capacitor's resistive effects are significant when considering the Q of an RLC circuit.

-As the frequency approaches the resonant frequency in Figure 13 -1, the VR .

In a parallel resonant RLC circuit, the impedance is and the total current is .

-If the resistance increases in Figure 13 -2, the bandwidth .

In an ideal parallel resonant circuit, the total current into the L and C branches is .

-If a resonant circuit has a low Q, it .

When tuning across the resonant frequency of a series RLC band -pass filter, which of the following is true?

The output voltage of a circuit at 70.7% of its maximum level measured in dB is:

In a parallel RLC just below the resonant frequency, the impedance is:

At resonance, the impedance of a series RLC circuit equals its resistance.

What is the power at f1 and f2 in a resonant circuit that delivers 120 W?

What is the resonant frequency of a tank circuit with a 150 mH inductor and a 300 pF capacitor?

What is the bandwidth of the resonant circuit if the resonant frequency is 1.42 MHz, the inductive reactance is 3.5 kΩ and the coil's resistance is 8 ohm?

A resonant circuit with a high Q _.

The resonant frequency of a tank circuit with a 0.150 mH inductor and 300 pF capacitor is .

Why does a resistive load increase the bandwidth of a given band -pass filter?

At resonance, a parallel RLC circuit is capacitive.

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rccircuits

Inductors

Rlcircuits

Transformers

Time Response of Reactive Circuits

Filters

Exam 13: Rlccircuits and Resonance

-If the resistance decreases in Figure 13 -2, the bandwidth .

In a parallel RLC circuit,at resonance the capacitive reactance (XC)and the inductive reactance (XL):

For the tuning circuit of a radio frequency receiver, the filter:

The capacitor's resistive effects are significant when considering the Q of an RLC circuit.

-As the frequency approaches the resonant frequency in Figure 13 -1, the VR .

In a parallel resonant RLC circuit, the impedance is and the total current is .

-If the resistance increases in Figure 13 -2, the bandwidth .

In an ideal parallel resonant circuit, the total current into the L and C branches is .

-If a resonant circuit has a low Q, it .

When tuning across the resonant frequency of a series RLC band -pass filter, which of the following is true?

The output voltage of a circuit at 70.7% of its maximum level measured in dB is:

In a parallel RLC just below the resonant frequency, the impedance is:

At resonance, the impedance of a series RLC circuit equals its resistance.

What is the power at f1 and f2 in a resonant circuit that delivers 120 W?

What is the resonant frequency of a tank circuit with a 150 mH inductor and a 300 pF capacitor?

What is the bandwidth of the resonant circuit if the resonant frequency is 1.42 MHz, the inductive reactance is 3.5 kΩ and the coil's resistance is 8 ohm?

A resonant circuit with a high Q _.

The resonant frequency of a tank circuit with a 0.150 mH inductor and 300 pF capacitor is .

Why does a resistive load increase the bandwidth of a given band -pass filter?

At resonance, a parallel RLC circuit is capacitive.

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rccircuits

Inductors

Rlcircuits

Transformers

Time Response of Reactive Circuits

Filters