Question 1

The arrowhead in the schematic symbol for a diode represents:

Accepted Answer

A) the semiconductor lead. 
B) the cathode. 
C) the anode. 
D) all of these. 
A) the semiconductor lead. 
B) the cathode. 
C) the anode. 
D) all of these.

Question 2

A full- Wave bridge rectifier requires ________.

Accepted Answer

A) four diodes and a transformer With a single secondary 
B) a highVoltage to operate it 
C) two diodes and a transformer With a single secondary 
D) a center-tapped transformer 
A) four diodes and a transformer With a single secondary 
B) a highVoltage to operate it 
C) two diodes and a transformer With a single secondary 
D) a center-tapped transformer

Question 3

Which one of these characteristics do an op-amp and a MOSFET have in common?

Accepted Answer

A) high input impedance 
B) high current gain 
C) high CMRR 
D) highVoltage gain 
A) high input impedance 
B) high current gain 
C) high CMRR 
D) highVoltage gain

Question 4

The ideal amplifier has infinite gain, infinite input impedance, and zero output impedance.

Accepted Answer

A) True 
 B)False

Question 5

\[\text { Figure } 17 GS  in Figure 17-2.

Accepted Answer

A)   -5 V 
B)   10 V 
C)   5 V 
D)   -10 V 
A)   -5 V 
B)   10 V 
C)   5 V 
D)   -10 V

Question 6

The general characteristics of a common-emitter amplifier are low voltage gain, low current gain and very high power gain.

Accepted Answer

A) True 
 B)False

Question 7

If $R _ { i } = 1 \mathrm { k } \Omega , R _ { f } = 100 \mathrm { k } \Omega$ and VOUT  =5 V in a noninverting op-amp, VRI equals___

Accepted Answer

A)   50 mV 
B)   500 mV 
C)   495 mV 
D)   49.5 mV 
A)   50 mV 
B)   500 mV 
C)   495 mV 
D)   49.5 mV

Question 8

$\text { Figure } 16<2$

-Which block Will smooth out the pulsating dc in Figure 16-2?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 9

PhotodiodesW ill conduct more as the light intensity upon them increases.

Accepted Answer

A) True 
 B)False

Question 10

$\text { Figure } 16<2$

-The purpose of Block 4 in Figure 16-2 is to ________.

Accepted Answer

A)  keep the dc output voltage constant as the load changes 
B)  adjust the output voltage to the correct ac value 
C)  make sure that the fuse will not blow 
D)  maintain a constant output current when the load current changes 
A)  keep the dc output voltage constant as the load changes 
B)  adjust the output voltage to the correct ac value 
C)  make sure that the fuse will not blow 
D)  maintain a constant output current when the load current changes

Question 11

Which one of these amplifiers has a very high power gain?

Accepted Answer

A) common-emitter 
B) common-reference 
C) common-collector 
D) common-gate 
A) common-emitter 
B) common-reference 
C) common-collector 
D) common-gate

Question 12

Class C amplifiers are used primarily at radio frequencies.

Accepted Answer

A) True 
 B)False

Question 13

$$\text { Figure } \mathbf { 1 7 } < 5$$
-The circuit in Figure 17-5 is known as a ________ oscillator because it has a ________ coil.

Accepted Answer

A) crystal, dual 
B) Colpitts, dual 
C) Hartley, dual 
A) crystal, dual 
B) Colpitts, dual 
C) Hartley, dual

Question 14

\[\text { Figure } 17 B_________

Accepted Answer

A)  drops almost to zero 
B)  increases 
C)  decreases 
D)  remains the same 
A)  drops almost to zero 
B)  increases 
C)  decreases 
D)  remains the same

Question 15

\[\text { Figure } 19 IN=70 VP in Figure 19-3, the output voltage at  fCO  equals______

Accepted Answer

A)   13 VP 
B)   0 VP 
C)   49.5 VP 
D)   44.2 VP 
A)   13 VP 
B)   0 VP 
C)   49.5 VP 
D)   44.2 VP

Question 16

(a)
 
(b)
 
(c)

Figure $16 < 1$

-If the diode is silicon,W hat is the voltage across the resistor in Figure 16-1(a)?

Accepted Answer

A) 0V 
B) 20V 
C) 0.7V 
D) 19.3V 
A) 0V 
B) 20V 
C) 0.7V 
D) 19.3V

Question 17

For normal operation of a NPN transistor, the base must be_________________

Accepted Answer

A)  positive with respect to the collector 
B)  positive with respect to the emitter 
C)  negative with respect to the emitter 
D)  disconnected 
A)  positive with respect to the collector 
B)  positive with respect to the emitter 
C)  negative with respect to the emitter 
D)  disconnected

Question 18

The formula for load regulation is:

Accepted Answer

A) $\left[ \frac { \mathrm { V } _ { \mathrm { NL } } - \mathrm { V } _ { \mathrm { FL } } } { \mathrm { V } _ { \mathrm { FL } } } \right] \times 100 \%$ 
B) $\left[ \frac { \mathrm { V } _ { \mathrm { FL } } - \mathrm { V } \mathrm { NL } } { \mathrm { V } _ { \mathrm { FL } } } \right] \times 100 \%$ 
C) $\left[ \frac { \mathrm { V } _ { \mathrm { NL } } - \mathrm { V } _ { \mathrm { FL } } } { \mathrm { V } _ { \mathrm { NL } } } \right] \times 100 \%$ 
D) $\left[ \frac { \mathrm { V } _ { \mathrm { FL } } - \mathrm { V } _ { \mathrm { NL } } } { \mathrm { V } _ { \mathrm { NL } } } \right] \times 100 \%$ 
A) $\left[ \frac { \mathrm { V } _ { \mathrm { NL } } - \mathrm { V } _ { \mathrm { FL } } } { \mathrm { V } _ { \mathrm { FL } } } \right] \times 100 \%$ 
B) $\left[ \frac { \mathrm { V } _ { \mathrm { FL } } - \mathrm { V } \mathrm { NL } } { \mathrm { V } _ { \mathrm { FL } } } \right] \times 100 \%$ 
C) $\left[ \frac { \mathrm { V } _ { \mathrm { NL } } - \mathrm { V } _ { \mathrm { FL } } } { \mathrm { V } _ { \mathrm { NL } } } \right] \times 100 \%$ 
D) $\left[ \frac { \mathrm { V } _ { \mathrm { FL } } - \mathrm { V } _ { \mathrm { NL } } } { \mathrm { V } _ { \mathrm { NL } } } \right] \times 100 \%$

Question 19

(a)
 
(b)
 
(c)

Figure \(16 2 is ________.

Accepted Answer

A) 25V 
B) 49.3V 
C) 0.7V 
D) 0V 
A) 25V 
B) 49.3V 
C) 0.7V 
D) 0V

Question 20

Zener diodes areW idely used as ________.

Accepted Answer

A) voltage regulators 
B) power distributors 
C) current limiters 
D) variable resistors 
A) voltage regulators 
B) power distributors 
C) current limiters 
D) variable resistors

The arrowhead in the schematic symbol for a diode represents:

A full- Wave bridge rectifier requires ________.

Which one of these characteristics do an op-amp and a MOSFET have in common?

The ideal amplifier has infinite gain, infinite input impedance, and zero output impedance.

$\text { Figure } 17 < 2 -Find V<sub>GS</sub> in Figure 17-2.$ $\text { Figure } 17 < 2$ -Find V_GS in Figure 17-2.

The general characteristics of a common-emitter amplifier are low voltage gain, low current gain and very high power gain.

If $R _ { i } = 1 \mathrm { k } \Omega , R _ { f } = 100 \mathrm { k } \Omega$ and V_OUT =5 V in a noninverting op-amp, VRI equals___

$\text { Figure } 16<2 -Which block Will smooth out the pulsating dc in Figure 16-2?$ $\text { Figure } 16<2$ -Which block Will smooth out the pulsating dc in Figure 16-2?

PhotodiodesW ill conduct more as the light intensity upon them increases.

$\text { Figure } 16<2 -The purpose of Block 4 in Figure 16-2 is to .$ $\text { Figure } 16<2$ -The purpose of Block 4 in Figure 16-2 is to .

Which one of these amplifiers has a very high power gain?

Class C amplifiers are used primarily at radio frequencies.

$\text { Figure } \mathbf { 1 7 } < 5 -The circuit in Figure 17-5 is known as a oscillator because it has a coil.$ $\text { Figure } \mathbf { 1 7 } < 5$ -The circuit in Figure 17-5 is known as a oscillator because it has a coil.

$\text { Figure } 17 < 4 -If the BJT's collector opens internally in Figure 17-4, V<sub>B</sub>_________$ $\text { Figure } 17 < 4$ -If the BJT's collector opens internally in Figure 17-4, V_B_________

$\text { Figure } 19 < 3 -If V<sub>IN</sub>=70 V<sub>P</sub> in Figure 19-3, the output voltage at f<sub>CO</sub> equals______$ $\text { Figure } 19 < 3$ -If V_IN=70 V_P in Figure 19-3, the output voltage at f_CO equals______

(a) (b) (c) Figure $16 < 1$ -If the diode is silicon,W hat is the voltage across the resistor in Figure 16-1(a)?

For normal operation of a NPN transistor, the base must be_________________

The formula for load regulation is:

(a) (b) (c) Figure $16 < 1$ -If the polarity of the silicon diode is reversed in Figure 16-1(c), VR₂ is ________.

Zener diodes areW idely used as ________.

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

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Time Response of Reactive Circuits

Transformers

Understanding Transducers, Sensors, and Conversion in Industrial Processes

Filters

Exam 16: Regulators, Filters, and Op-Amps

The arrowhead in the schematic symbol for a diode represents:

A full- Wave bridge rectifier requires ________.

Which one of these characteristics do an op-amp and a MOSFET have in common?

The ideal amplifier has infinite gain, infinite input impedance, and zero output impedance.

Figure 17<2\text { Figure } 17 < 2 Figure 17<2 -Find VGS in Figure 17-2.

The general characteristics of a common-emitter amplifier are low voltage gain, low current gain and very high power gain.

If Ri=1kΩ,Rf=100kΩR _ { i } = 1 \mathrm { k } \Omega , R _ { f } = 100 \mathrm { k } \OmegaRi​=1kΩ,Rf​=100kΩ and VOUT =5 V in a noninverting op-amp, VRI equals___

Figure 16<2\text { Figure } 16<2 Figure 16<2 -Which block Will smooth out the pulsating dc in Figure 16-2?

PhotodiodesW ill conduct more as the light intensity upon them increases.

Figure 16<2\text { Figure } 16<2 Figure 16<2 -The purpose of Block 4 in Figure 16-2 is to ________.

Which one of these amplifiers has a very high power gain?

Class C amplifiers are used primarily at radio frequencies.

Figure 17<5\text { Figure } \mathbf { 1 7 } < 5 Figure 17<5 -The circuit in Figure 17-5 is known as a ________ oscillator because it has a ________ coil.

Figure 17<4\text { Figure } 17 < 4 Figure 17<4 -If the BJT's collector opens internally in Figure 17-4, VB_________

Figure 19<3\text { Figure } 19 < 3 Figure 19<3 -If VIN=70 VP in Figure 19-3, the output voltage at fCO equals______

(a) (b) (c) Figure 16<116 < 116<1 -If the diode is silicon,W hat is the voltage across the resistor in Figure 16-1(a)?

For normal operation of a NPN transistor, the base must be_________________

The formula for load regulation is:

(a) (b) (c) Figure 16<116 < 116<1 -If the polarity of the silicon diode is reversed in Figure 16-1(c), VR2 is ________.

Zener diodes areW idely used as ________.

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

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Time Response of Reactive Circuits

Transformers

Understanding Transducers, Sensors, and Conversion in Industrial Processes

Filters

$\text { Figure } 17 < 2 -Find V<sub>GS</sub> in Figure 17-2.$ $\text { Figure } 17 < 2$ -Find V_GS in Figure 17-2.

If $R _ { i } = 1 \mathrm { k } \Omega , R _ { f } = 100 \mathrm { k } \Omega$ and V_OUT =5 V in a noninverting op-amp, VRI equals___

$\text { Figure } 16<2 -Which block Will smooth out the pulsating dc in Figure 16-2?$ $\text { Figure } 16<2$ -Which block Will smooth out the pulsating dc in Figure 16-2?

$\text { Figure } 16<2 -The purpose of Block 4 in Figure 16-2 is to .$ $\text { Figure } 16<2$ -The purpose of Block 4 in Figure 16-2 is to .

$\text { Figure } \mathbf { 1 7 } < 5 -The circuit in Figure 17-5 is known as a oscillator because it has a coil.$ $\text { Figure } \mathbf { 1 7 } < 5$ -The circuit in Figure 17-5 is known as a oscillator because it has a coil.

$\text { Figure } 17 < 4 -If the BJT's collector opens internally in Figure 17-4, V<sub>B</sub>_________$ $\text { Figure } 17 < 4$ -If the BJT's collector opens internally in Figure 17-4, V_B_________

$\text { Figure } 19 < 3 -If V<sub>IN</sub>=70 V<sub>P</sub> in Figure 19-3, the output voltage at f<sub>CO</sub> equals______$ $\text { Figure } 19 < 3$ -If V_IN=70 V_P in Figure 19-3, the output voltage at f_CO equals______

(a) (b) (c) Figure $16 < 1$ -If the diode is silicon,W hat is the voltage across the resistor in Figure 16-1(a)?

(a) (b) (c) Figure $16 < 1$ -If the polarity of the silicon diode is reversed in Figure 16-1(c), VR₂ is ________.