Question 1

A capacitor filtered full- wave rectifier has a ripple frequency that is

Accepted Answer

A) 1.5 times the input frequency 
B) twice that of the input frequency 
C) the same as the input frequency 
D) half that of the input frequency 
A) 1.5 times the input frequency 
B) twice that of the input frequency 
C) the same as the input frequency 
D) half that of the input frequency

Question 2

Figure 1
-For the circuit in Figure 1, assume ideal diodes. The average voltage you should observe across RL is

Accepted Answer

A) 13.5 V 
B) 19.2 V 
C) 9.6 V 
D) 27.0 V 
A) 13.5 V 
B) 19.2 V 
C) 9.6 V 
D) 27.0 V

Question 3

Assume an ideal diode has a series 10 k▲ resistor and is reverse- biased with a 5.0 V source. The current in the diode is

Accepted Answer

A) 0 mA 
B) 0.5 mA 
C) 2.0 mA 
D) 1.0 mA 
A) 0 mA 
B) 0.5 mA 
C) 2.0 mA 
D) 1.0 mA

Question 4

For a forward- biased diode, as temperature increases, forward current also increases.

Accepted Answer

A) True 
 B)False

Question 5

The ripple frequency of a bridge rectifier is

Accepted Answer

A) equal to the input frequency 
B) double the input frequency 
C) four times the input frequency 
D) half the input frequency 
A) equal to the input frequency 
B) double the input frequency 
C) four times the input frequency 
D) half the input frequency

Question 6

Figure 4
-Refer to Figure 4. Assume the diode is a practical diode. The current in the diode will be

Accepted Answer

A) 4.7 mA 
B) 5.7 mA 
C) 0 mA 
D) 0.2 mA 
A) 4.7 mA 
B) 5.7 mA 
C) 0 mA 
D) 0.2 mA

Question 7

C:\User   Figure 7
For questions 34, 35, and 36, assume ideal diodes
-Which circuit in Figure 6 will produce the waveform in Figure 7(a)?

Accepted Answer

A) (a) 
B) (b) 
C) (c) 
D) (d) 
A) (a) 
B) (b) 
C) (c) 
D) (d)

Question 8

The ideal dc output voltage of a capacitor- input filter equals the

Accepted Answer

A) one- half of the peak of the rectified voltage 
B) average value of the rectified voltage 
C) peak value of the rectified voltage 
D) rms value of the rectified voltage 
A) one- half of the peak of the rectified voltage 
B) average value of the rectified voltage 
C) peak value of the rectified voltage 
D) rms value of the rectified voltage

Question 9

Figure 9
-The circuit in Figure 9 is a

Accepted Answer

A) clipping circuit 
B) voltage doubler 
C) voltage tripler 
D) limiter circuit 
A) clipping circuit 
B) voltage doubler 
C) voltage tripler 
D) limiter circuit

Question 10

Figure 1
-For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately

Accepted Answer

A) 42 V 
B) 21 V 
C) 36 V 
D) 0 V 
A) 42 V 
B) 21 V 
C) 36 V 
D) 0 V

Question 11

The forward resistance of a diode is

Accepted Answer

A) constant 
B) extremely high at all points 
C) lower above the knee 
D) lower below the knee 
A) constant 
B) extremely high at all points 
C) lower above the knee 
D) lower below the knee

Question 12

C:\User   Figure 7
For questions 34, 35, and 36, assume ideal diodes
-Which circuit in Figure 6 will produce the waveform in Figure 7(c)?

Accepted Answer

A) (a) 
B) (b) 
C) (c) 
D) (d) 
A) (a) 
B) (b) 
C) (c) 
D) (d)

Question 13

In a full wave bridge rectifier with a capacitor filter, assume a diode has opened. You expect to see

Accepted Answer

A) an increase in the ripple frequency 
B) an increase in the ripple voltage 
C) both A and B 
D) none of the above 
A) an increase in the ripple frequency 
B) an increase in the ripple voltage 
C) both A and B 
D) none of the above

Question 14

Figure 1
-The circuit in Figure 1 is a

Accepted Answer

A) clamping circuit 
B) bridge rectifier 
C) center- tapped full- wave rectifier 
D) half- wave rectifier 
A) clamping circuit 
B) bridge rectifier 
C) center- tapped full- wave rectifier 
D) half- wave rectifier

Question 15

Figure 2
-Refer to Figure 2. The circuit that will produce a negative output is

Accepted Answer

A) (a) 
B) (b) 
C) (c) 
D) (d) 
A) (a) 
B) (b) 
C) (c) 
D) (d)

Question 16

Assume an ideal diode has a series 10 k▲ resistor and is forward- biased with a 20 V source. The current in the diode is

Accepted Answer

A) 2.0 mA 
B) 0 mA 
C) 1.0 mA 
D) 0.5 mA 
A) 2.0 mA 
B) 0 mA 
C) 1.0 mA 
D) 0.5 mA

Question 17

A capacitor filtered half- wave rectifier has a ripple frequency that is

Accepted Answer

A) half that of the input frequency 
B) twice that of the input frequency 
C) the same as the input frequency 
D) 1.5 times the input frequency 
A) half that of the input frequency 
B) twice that of the input frequency 
C) the same as the input frequency 
D) 1.5 times the input frequency

Question 18

When a diode is reverse- biased, the current is normally extremely small.

Accepted Answer

A) True 
 B)False

Question 19

A voltage regulator compensates for changes in

Accepted Answer

A) temperature effects 
B) load conditions 
C) input voltage changes 
D) all of the above 
A) temperature effects 
B) load conditions 
C) input voltage changes 
D) all of the above

Question 20

Figure 4
-Refer to Figure 4. Assume the diode is a practical diode. If the diode is reversed, the current in the diode will be

Accepted Answer

A) 0 mA 
B) 4.7 mA 
C) 5.7 mA 
D) 0.2 mA 
A) 0 mA 
B) 4.7 mA 
C) 5.7 mA 
D) 0.2 mA

A capacitor filtered full- wave rectifier has a ripple frequency that is

Figure 1 -For the circuit in Figure 1, assume ideal diodes. The average voltage you should observe across RL is

Assume an ideal diode has a series 10 k▲ resistor and is reverse- biased with a 5.0 V source. The current in the diode is

For a forward- biased diode, as temperature increases, forward current also increases.

The ripple frequency of a bridge rectifier is

Figure 4 -Refer to Figure 4. Assume the diode is a practical diode. The current in the diode will be

C:\User $C:\User Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(a)?$ Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(a)?

The ideal dc output voltage of a capacitor- input filter equals the

Figure 9 -The circuit in Figure 9 is a

Figure 1 -For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately

The forward resistance of a diode is

C:\User $C:\User Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(c)?$ Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(c)?

In a full wave bridge rectifier with a capacitor filter, assume a diode has opened. You expect to see

Figure 1 -The circuit in Figure 1 is a

Figure 2 -Refer to Figure 2. The circuit that will produce a negative output is

Assume an ideal diode has a series 10 k▲ resistor and is forward- biased with a 20 V source. The current in the diode is

A capacitor filtered half- wave rectifier has a ripple frequency that is

When a diode is reverse- biased, the current is normally extremely small.

A voltage regulator compensates for changes in

Figure 4 -Refer to Figure 4. Assume the diode is a practical diode. If the diode is reversed, the current in the diode will be

Introduction to Semiconductors

Special-Purpose Diodes

Bipolar Junction Transistors

Transistor Bias Circuits

BJT Amplifiers

BJT Power Amplifiers

Field-Effect Transistors Fets

Fet Amplifiers and Switching Circuits

Amplifier Frequency Response

Thyristors

The Operational Amplifier

Basic Op-Amp Circuits

Special-Purpose Integrated Circuits

Active Filters

Oscillators

Voltage Regulators

Communication Devices and Methods

Filters

Exam 2: Diodes and Applications

A capacitor filtered full- wave rectifier has a ripple frequency that is

Figure 1 -For the circuit in Figure 1, assume ideal diodes. The average voltage you should observe across RL is

Assume an ideal diode has a series 10 k▲ resistor and is reverse- biased with a 5.0 V source. The current in the diode is

For a forward- biased diode, as temperature increases, forward current also increases.

The ripple frequency of a bridge rectifier is

Figure 4 -Refer to Figure 4. Assume the diode is a practical diode. The current in the diode will be

C:\User Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(a)?

The ideal dc output voltage of a capacitor- input filter equals the

Figure 9 -The circuit in Figure 9 is a

Figure 1 -For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately

The forward resistance of a diode is

C:\User Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(c)?

In a full wave bridge rectifier with a capacitor filter, assume a diode has opened. You expect to see

Figure 1 -The circuit in Figure 1 is a

Figure 2 -Refer to Figure 2. The circuit that will produce a negative output is

Assume an ideal diode has a series 10 k▲ resistor and is forward- biased with a 20 V source. The current in the diode is

A capacitor filtered half- wave rectifier has a ripple frequency that is

When a diode is reverse- biased, the current is normally extremely small.

A voltage regulator compensates for changes in

Figure 4 -Refer to Figure 4. Assume the diode is a practical diode. If the diode is reversed, the current in the diode will be

Introduction to Semiconductors

Special-Purpose Diodes

Bipolar Junction Transistors

Transistor Bias Circuits

BJT Amplifiers

BJT Power Amplifiers

Field-Effect Transistors Fets

Fet Amplifiers and Switching Circuits

Amplifier Frequency Response

Thyristors

The Operational Amplifier

Basic Op-Amp Circuits

Special-Purpose Integrated Circuits

Active Filters

Oscillators

Voltage Regulators

Communication Devices and Methods

Filters

C:\User $C:\User Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(a)?$ Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(a)?

C:\User $C:\User Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(c)?$ Figure 7 For questions 34, 35, and 36, assume ideal diodes -Which circuit in Figure 6 will produce the waveform in Figure 7(c)?