Filters
Question type
Study Flashcards

-If the operating frequency decreases in Figure 10 -1, how does the resistance value change? A) It decreases. B) It increases. C) It opens. D) It remains the same. -If the operating frequency decreases in Figure 10 -1, how does the resistance value change?


A) It decreases.
B) It increases.
C) It opens.
D) It remains the same.

E) A) and D)
F) B) and D)

Correct Answer

verifed

verified

-What is the true power in Figure 10 -1? A) 5.73 W B) 916 mW C) 275 mW D) 5.73 mW -What is the true power in Figure 10 -1?


A) 5.73 W
B) 916 mW
C) 275 mW
D) 5.73 mW

E) C) and D)
F) None of the above

Correct Answer

verifed

verified

-What change would increase the power factor in Figure 10 -2? A) Increasing the value of the source voltage B) Increasing the value of the capacitor C) Decreasing the value of the capacitor D) Increasing the value of the resistor -What change would increase the power factor in Figure 10 -2?


A) Increasing the value of the source voltage
B) Increasing the value of the capacitor
C) Decreasing the value of the capacitor
D) Increasing the value of the resistor

E) A) and C)
F) A) and B)

Correct Answer

verifed

verified

A leaky capacitor can be equated as a capacitor with a resistor being placed in series with it.

A) True
B) False

Correct Answer

verifed

verified

In a X10 oscilloscope probe input resistance is factor of 10. _ and input capacitance is _ by a


A) increased, decreased
B) decreased, increased
C) decreased, decreased
D) increased, increased

E) C) and D)
F) B) and C)

Correct Answer

verifed

verified

-If the operating frequency decreases in Figure 10 -1, how does the capacitance value change? A) It remains the same. B) It decreases. C) It increases. D) It decreases to zero. -If the operating frequency decreases in Figure 10 -1, how does the capacitance value change?


A) It remains the same.
B) It decreases.
C) It increases.
D) It decreases to zero.

E) B) and C)
F) A) and D)

Correct Answer

verifed

verified

-If the input voltage increases to 50 V in Figure 10 -3, what is the output voltage at the cutoff frequency? A) 35.4 V B) 17.7 V C) 70.7 V D) 8.84 V -If the input voltage increases to 50 V in Figure 10 -3, what is the output voltage at the cutoff frequency?


A) 35.4 V
B) 17.7 V
C) 70.7 V
D) 8.84 V

E) B) and C)
F) B) and D)

Correct Answer

verifed

verified

-If the operating frequency decreases in Figure 10 -1, how does the current change? A) It decreases. B) It increases. C) It remains the same. D) It decreases to zero. -If the operating frequency decreases in Figure 10 -1, how does the current change?


A) It decreases.
B) It increases.
C) It remains the same.
D) It decreases to zero.

E) B) and D)
F) A) and D)

Correct Answer

verifed

verified

The total current in an RC circuit always leads the source voltage.

A) True
B) False

Correct Answer

verifed

verified

-If the resistor changes to 2.2 kΩ in Figure 10 -3, the new cutoff frequency equals . A) 1.18 kHz B) 995 Hz C) 1.81 kHz D) 1.01 kHz -If the resistor changes to 2.2 kΩ in Figure 10 -3, the new cutoff frequency equals .


A) 1.18 kHz
B) 995 Hz
C) 1.81 kHz
D) 1.01 kHz

E) All of the above
F) A) and B)

Correct Answer

verifed

verified

-If the frequency decreases in Figure 10 -1, the phase angle and the impedance _. A) decreases, decreases B) increases, increases C) increases, decreases D) decreases, increases -If the frequency decreases in Figure 10 -1, the phase angle and the impedance _.


A) decreases, decreases
B) increases, increases
C) increases, decreases
D) decreases, increases

E) A) and D)
F) A) and C)

Correct Answer

verifed

verified

When the frequency applied to an RC circuit varies, the value of XC varies.

A) True
B) False

Correct Answer

verifed

verified

-What change would decrease the power factor in Figure 10 -2? A) increasing the value of the resistor B) increasing the value of Vs C) decreasing the value of the capacitor D) increasing the value of the capacitor -What change would decrease the power factor in Figure 10 -2?


A) increasing the value of the resistor
B) increasing the value of Vs
C) decreasing the value of the capacitor
D) increasing the value of the capacitor

E) A) and B)
F) B) and D)

Correct Answer

verifed

verified

-If the resistance is reduced to 4 kΩ in Figure 10 -3, the cutoff frequency equals . A) 480 Hz B) 6250 Hz C) 995 Hz D) 99 Hz -If the resistance is reduced to 4 kΩ in Figure 10 -3, the cutoff frequency equals .


A) 480 Hz
B) 6250 Hz
C) 995 Hz
D) 99 Hz

E) All of the above
F) C) and D)

Correct Answer

verifed

verified

-What is the circuit's impedance in Figure 10 -1? A) 520 Ω B) 418 Ω C) 280 Ω D) 120 Ω -What is the circuit's impedance in Figure 10 -1?


A) 520 Ω
B) 418 Ω
C) 280 Ω
D) 120 Ω

E) All of the above
F) A) and D)

Correct Answer

verifed

verified

-If the output were taken across the resistor in Figure 10 -3, the circuit would be known as a . A) low -pass filter B) band -notch filter C) band -pass filter D) high -pass filter -If the output were taken across the resistor in Figure 10 -3, the circuit would be known as a .


A) low -pass filter
B) band -notch filter
C) band -pass filter
D) high -pass filter

E) A) and C)
F) None of the above

Correct Answer

verifed

verified

-If the frequency increases in Figure 10 -1, the phase angle and the impedance _. A) decreases, increases B) increases, increases C) decreases, decreases D) increases, decreases -If the frequency increases in Figure 10 -1, the phase angle and the impedance _.


A) decreases, increases
B) increases, increases
C) decreases, decreases
D) increases, decreases

E) A) and B)
F) All of the above

Correct Answer

verifed

verified

As the frequency applied to an RC circuit increases, the impedance decreases.

A) True
B) False

Correct Answer

verifed

verified

-What is the output voltage at the cutoff frequency in Figure 10 -3? A) 31.1 V B) 6.45 V C) 15.6 V D) 22 V -What is the output voltage at the cutoff frequency in Figure 10 -3?


A) 31.1 V
B) 6.45 V
C) 15.6 V
D) 22 V

E) B) and D)
F) A) and D)

Correct Answer

verifed

verified

-If the frequency is 400 Hz in Figure 10 -1, what is the value of capacitance? A) 10 µF B) 6.6 µF C) 8.8 µF D) 3.3 µF -If the frequency is 400 Hz in Figure 10 -1, what is the value of capacitance?


A) 10 µF
B) 6.6 µF
C) 8.8 µF
D) 3.3 µF

E) A) and B)
F) B) and D)

Correct Answer

verifed

verified

Showing 21 - 40 of 66

Related Exams

Exam 1

Systems, Quantities, and Units

41 Questions

Exam 2

Voltage, Current, and Resistance

71 Questions

Exam 3

Ohms Law, Energy, and Power

69 Questions

Exam 4

Series Circuits

67 Questions

Exam 5

Parallel Circuits

66 Questions

Exam 6

Series-Parallel Circuits

73 Questions

Exam 7

Magnetism and Electromagnetism

69 Questions

Exam 8

Introduction to Alternating Current and Voltage

74 Questions

Exam 9

Capacitors

69 Questions

Exam 11

Inductors

66 Questions

Exam 12

Rlcircuits

67 Questions

Exam 13

Rlccircuits and Resonance

70 Questions

Exam 14

Transformers

69 Questions

Exam 15

Time Response of Reactive Circuits

68 Questions

Show Answer