Question 1

Figure 8
-Refer Figure 8. If the zener diode is open, the output voltage will be

Accepted Answer

A) 7.0 V 
B) 5.0 V 
C) 0 V 
D) 9.0 V 
A) 7.0 V 
B) 5.0 V 
C) 0 V 
D) 9.0 V

Question 2

In maximum power point tracking, maximum power is obtained by adjusting the

Accepted Answer

A) internal resistance 
B) temperature 
C) load resistance 
D) bias voltage 
A) internal resistance 
B) temperature 
C) load resistance 
D) bias voltage

Question 3

Figure 1 VS1U1B1Z S1U1B0= 5.1 V at IS1U1B1Z S1U1B0= 49 mA, IS1U1B1ZK S1U1B0= 1 mA, and ZS1U1B1Z S1U1B0= 7 ▲ over the range of current values.
-Refer to Figure 1. What setting of VIN will give an output closest to 5.1 V?

Accepted Answer

A) 9.8 V 
B) 14.9 V 
C) 5.3 V 
D) 6.1 V 
A) 9.8 V 
B) 14.9 V 
C) 5.3 V 
D) 6.1 V

Question 4

Assume the frequency of a resonant circuit is varied with a varactor that has a minimum capacitance of 5 pF and a maximum capacitance of 50 pF. The ratio of highest to lowest frequency the circuit can tune is

Accepted Answer

A) greater than 10 
B) 10 
C) less than 10 
A) greater than 10 
B) 10 
C) less than 10

Question 5

Compared to incandescent lamps, LEDs are

Accepted Answer

A) more efficient 
B) have a longer lifetime 
C) both A and B 
D) none of the above 
A) more efficient 
B) have a longer lifetime 
C) both A and B 
D) none of the above

Question 6

A Schottky diode is primarily used as a

Accepted Answer

A) regulator 
B) fast switching diode 
C) low- frequency rectifier 
D) variable capacitor 
A) regulator 
B) fast switching diode 
C) low- frequency rectifier 
D) variable capacitor

Question 7

Figure 2
-Refer to Figure 2. The maximum negative output voltage is

Accepted Answer

A) -8.0 V 
B) -4.7 V 
C) -5.4 V 
D) -4.0 V 
A) -8.0 V 
B) -4.7 V 
C) -5.4 V 
D) -4.0 V

Question 8

Figure 8
-Refer to Figure 8. Assume a 150 ▲ resistor is put in parallel with RL. The new zener current will be

Accepted Answer

A) 48 mA 
B) 100 mA 
C) 0 mA 
D) 3 mA 
A) 48 mA 
B) 100 mA 
C) 0 mA 
D) 3 mA

Question 9

Figure 2
-Refer to Figure 2. Assume the top diode is reversed. The circuit will

Accepted Answer

A) clip negative peaks below -8.0 V 
B) clip positive peaks above +8.0 V 
C) both A and B 
D) none of the above 
A) clip negative peaks below -8.0 V 
B) clip positive peaks above +8.0 V 
C) both A and B 
D) none of the above

Question 10

Figure 7
-Refer to Figure 7. The curve is for a

Accepted Answer

A) Schottky diode 
B) tunnel diode 
C) current regulator diode 
D) PIN diode 
A) Schottky diode 
B) tunnel diode 
C) current regulator diode 
D) PIN diode

Question 11

A reverse- biased PIN diode acts like a

Accepted Answer

A) constant capacitance 
B) variable resistance 
C) constant current source 
D) constant voltage source 
A) constant capacitance 
B) variable resistance 
C) constant current source 
D) constant voltage source

Question 12

When a zener diode is forward biased, the voltage drop will be approximately

Accepted Answer

A) 0.7 V 
B) VZ + 0.7 V 
C) VZ - 0.7 V 
D) VZ 
A) 0.7 V 
B) VZ + 0.7 V 
C) VZ - 0.7 V 
D) VZ

Question 13

Figure 6
-Refer to Figure 6. This is the schematic symbol for a

Accepted Answer

A) current regulator diode 
B) Schottky diode 
C) step- recovery diode 
D) tunnel diode 
A) current regulator diode 
B) Schottky diode 
C) step- recovery diode 
D) tunnel diode

Question 14

An application for tunnel diodes is

Accepted Answer

A) as rectifiers 
B) in high- frequency oscillators 
C) in switching circuits 
D) as variable capacitors 
A) as rectifiers 
B) in high- frequency oscillators 
C) in switching circuits 
D) as variable capacitors

Question 15

Photodiodes and varactor diodes are normally operated with reverse- bias.

Accepted Answer

A) True 
 B)False

Question 16

Figure 4
-Refer to Figure 4. The symbol for a varactor diode is voltage across the load is

Accepted Answer

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

Question 17

In a silicon solar cell, sunlight

Accepted Answer

A) creates electron- hole pairs 
B) increases the resistance of the cell 
C) produces a useable voltage of 5- 6 V across the cell 
D) all of the above 
A) creates electron- hole pairs 
B) increases the resistance of the cell 
C) produces a useable voltage of 5- 6 V across the cell 
D) all of the above

Question 18

A zener diode is also called a tuning diode.

Accepted Answer

A) True 
 B)False

Question 19

An application for an infrared diode is

Accepted Answer

A) traffic lights 
B) in seven- segment displays 
C) in a remote control for TV 
D) all of the above 
A) traffic lights 
B) in seven- segment displays 
C) in a remote control for TV 
D) all of the above

Question 20

Figure 1 VS1U1B1Z S1U1B0= 5.1 V at IS1U1B1Z S1U1B0= 49 mA, IS1U1B1ZK S1U1B0= 1 mA, and ZS1U1B1Z S1U1B0= 7 ▲ over the range of current values.
-Refer to Figure 1. What is the output voltage if IZ = 20 mA?

Accepted Answer

A) 4.9 V 
B) 5.1 V 
C) 4.8 V 
D) 5.0 V 
A) 4.9 V 
B) 5.1 V 
C) 4.8 V 
D) 5.0 V

Figure 8 -Refer Figure 8. If the zener diode is open, the output voltage will be

In maximum power point tracking, maximum power is obtained by adjusting the

Figure 1 V_Z= 5.1 V at I_Z= 49 mA, I_ZK= 1 mA, and Z_Z= 7 ▲ over the range of current values. -Refer to Figure 1. What setting of VIN will give an output closest to 5.1 V?

Assume the frequency of a resonant circuit is varied with a varactor that has a minimum capacitance of 5 pF and a maximum capacitance of 50 pF. The ratio of highest to lowest frequency the circuit can tune is

Compared to incandescent lamps, LEDs are

A Schottky diode is primarily used as a

Figure 2 -Refer to Figure 2. The maximum negative output voltage is

Figure 8 -Refer to Figure 8. Assume a 150 ▲ resistor is put in parallel with RL. The new zener current will be

Figure 2 -Refer to Figure 2. Assume the top diode is reversed. The circuit will

Figure 7 -Refer to Figure 7. The curve is for a

A reverse- biased PIN diode acts like a

When a zener diode is forward biased, the voltage drop will be approximately

Figure 6 -Refer to Figure 6. This is the schematic symbol for a

An application for tunnel diodes is

Photodiodes and varactor diodes are normally operated with reverse- bias.

Figure 4 -Refer to Figure 4. The symbol for a varactor diode is voltage across the load is

In a silicon solar cell, sunlight

A zener diode is also called a tuning diode.

An application for an infrared diode is

Figure 1 V_Z= 5.1 V at I_Z= 49 mA, I_ZK= 1 mA, and Z_Z= 7 ▲ over the range of current values. -Refer to Figure 1. What is the output voltage if IZ = 20 mA?

Introduction to Semiconductors

Diodes and Applications

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 3: Special-Purpose Diodes

Figure 8 -Refer Figure 8. If the zener diode is open, the output voltage will be

In maximum power point tracking, maximum power is obtained by adjusting the

Figure 1 VZ = 5.1 V at IZ = 49 mA, IZK = 1 mA, and ZZ = 7 ▲ over the range of current values. -Refer to Figure 1. What setting of VIN will give an output closest to 5.1 V?

Assume the frequency of a resonant circuit is varied with a varactor that has a minimum capacitance of 5 pF and a maximum capacitance of 50 pF. The ratio of highest to lowest frequency the circuit can tune is

Compared to incandescent lamps, LEDs are

A Schottky diode is primarily used as a

Figure 2 -Refer to Figure 2. The maximum negative output voltage is

Figure 8 -Refer to Figure 8. Assume a 150 ▲ resistor is put in parallel with RL. The new zener current will be

Figure 2 -Refer to Figure 2. Assume the top diode is reversed. The circuit will

Figure 7 -Refer to Figure 7. The curve is for a

A reverse- biased PIN diode acts like a

When a zener diode is forward biased, the voltage drop will be approximately

Figure 6 -Refer to Figure 6. This is the schematic symbol for a

An application for tunnel diodes is

Photodiodes and varactor diodes are normally operated with reverse- bias.

Figure 4 -Refer to Figure 4. The symbol for a varactor diode is voltage across the load is

In a silicon solar cell, sunlight

A zener diode is also called a tuning diode.

An application for an infrared diode is

Figure 1 VZ = 5.1 V at IZ = 49 mA, IZK = 1 mA, and ZZ = 7 ▲ over the range of current values. -Refer to Figure 1. What is the output voltage if IZ = 20 mA?

Introduction to Semiconductors

Diodes and Applications

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

Figure 1 V_Z= 5.1 V at I_Z= 49 mA, I_ZK= 1 mA, and Z_Z= 7 ▲ over the range of current values. -Refer to Figure 1. What setting of VIN will give an output closest to 5.1 V?

Figure 1 V_Z= 5.1 V at I_Z= 49 mA, I_ZK= 1 mA, and Z_Z= 7 ▲ over the range of current values. -Refer to Figure 1. What is the output voltage if IZ = 20 mA?