Question 1

If an op-amp's output increases  6 V  every  18 $\mu \mathrm { s }$  in response to a step input voltage, the slew rate equals________

Accepted Answer

A)  33 $\mathrm { V } / \mu \mathrm { s }$ 
B)   0.33  $\mathrm { V } / \mu \mathrm { s }$ 
C)   0.99 $\mathrm { V } / \mu \mathrm { s }$ 
D)  3 $\mathrm { V } / \mathrm { \mu s }$ 
A)  33 $\mathrm { V } / \mu \mathrm { s }$ 
B)   0.33  $\mathrm { V } / \mu \mathrm { s }$ 
C)   0.99 $\mathrm { V } / \mu \mathrm { s }$ 
D)  3 $\mathrm { V } / \mathrm { \mu s }$

Question 2

The basic op-amp squareW ave oscillator is actually a:

Accepted Answer

A) Wein-bridge oscillator. 
B) resistor-capacitor (R
C) time constant oscillator. 
C) sine Wave oscillator. 
D) all of these. 
A) Wein-bridge oscillator. 
B) resistor-capacitor (R
C) time constant oscillator. 
C) sine Wave oscillator. 
D) all of these.

Question 3

Varactor diodes are used as voltage-variable capacitors.

Accepted Answer

A) True 
 B)False

Question 4

To correctly bias a BJT, reverse-bias the base-emitter junction and forward-bias the base-collector junction.

Accepted Answer

A) True 
 B)False

Question 5

\[\text { Figure } 17 1  opens in Figure  17-4, VC  equals______

Accepted Answer

A)   9 V 
B)   18 V 
C)   VE 
D)   0 V 
A)   9 V 
B)   18 V 
C)   VE 
D)   0 V

Question 6

An op-amp comparator can be used to determineW hen an input voltage crosses a certain reference Voltage.

Accepted Answer

A) True 
 B)False

Question 7

If a transistor's beta equals 30 and IB equals  1 mA, IC  equals_____

Accepted Answer

A)   1 mA 
B)   30 mA 
C)   0.33 mA 
D)  unknown 
A)   1 mA 
B)   30 mA 
C)   0.33 mA 
D)  unknown

Question 8

Figure $18 < 1$
-If $\mathrm { R } _ { f } = 100 \mathrm { k } \Omega$ and $\mathrm { R } _ { \mathrm { i } } = 6.8 \mathrm { k } \Omega$ in Figure 18-1(c), the voltage gain equals__________

Accepted Answer

A)   -15.7 
B)   -1 
C)   -14.7 
D)  infinite 
A)   -15.7 
B)   -1 
C)   -14.7 
D)  infinite

Question 9

\[\text { Figure } \mathbf { 1 9 } IN  equals  8 V  in Figure  19-1, VOUT  equals_______

Accepted Answer

A)   -1 V 
B)   1 V 
C)   13 V 
D)   -13 V 
A)   -1 V 
B)   1 V 
C)   13 V 
D)   -13 V

Question 10

(a)
 
(b)
 
(c)

Figure \(16 1  in Figure 16-1(c) if the diode is germanium?

Accepted Answer

A)   49.3 mA 
B)   49.7 mA 
C)   25 mA 
D)   0 A 
A)   49.3 mA 
B)   49.7 mA 
C)   25 mA 
D)   0 A

Question 11

In using BJT characteristic curves, the straight line drawn between the cutoff and the saturation points is called:

Accepted Answer

A) cutoff line. 
B) load line. 
C) saturation line. 
D) operating line. 
A) cutoff line. 
B) load line. 
C) saturation line. 
D) operating line.

Question 12

If the "+" lead on an ohmmeter is connected to a diode's anode and the "-" lead on the ohmmeter is connected to the diode's cathode, the measured resistance is normally________

Accepted Answer

A)  very low 
B)  very high 
C)  140 $k \Omega$ 
D)   0$\Omega$ 
A)  very low 
B)  very high 
C)  140 $k \Omega$ 
D)   0$\Omega$

Question 13

A transistor can be used as an electronic switch.

Accepted Answer

A) True 
 B)False

Question 14

Figure $18 < 1$
-The circuit in Figure 18-1(c)is known as the ________.

Accepted Answer

A) open-loop amplifier 
B) voltage follower amplifier 
C) non-inverting amplifier 
D) inverting amplifier 
A) open-loop amplifier 
B) voltage follower amplifier 
C) non-inverting amplifier 
D) inverting amplifier

Question 15

An op-ampW ith a low CMRR easily rejects noise signals that appear at both inputs.

Accepted Answer

A) True 
 B)False

Question 16

The open-loop voltage gain of an op-amp is very large.

Accepted Answer

A) True 
 B)False

Question 17

$\text { Figure } 17 < 1$
-If R1 opens in Figure 17-1, VC equals ________.

Accepted Answer

A) 20V 
B) 0.7V 
C) 0V 
D) 10V 
A) 20V 
B) 0.7V 
C) 0V 
D) 10V

Question 18

$$\text { Figure } 17 < 4$$
-Which voltage would enable the circuit in Figure  17-4  to operate with little distortion?

Accepted Answer

A)   VC=18 V 
B)   VBC=0 V 
C)   VCE=9 V 
D)   VBE=7 V 
A)   VC=18 V 
B)   VBC=0 V 
C)   VCE=9 V 
D)   VBE=7 V

Question 19

Figure $18 < 1$
-What is the voltage gain of the amplifier in Figure 18-1(a)?

Accepted Answer

A) 1000 
B) 1 
C) 100,000 
D) 10 
A) 1000 
B) 1 
C) 100,000 
D) 10

Question 20

A common-collector amplifier has a high input impedance compared to a common-emitter amplifier.

Accepted Answer

A) True 
 B)False

If an op-amp's output increases 6 V every 18 $\mu \mathrm { s }$ in response to a step input voltage, the slew rate equals________

The basic op-amp squareW ave oscillator is actually a:

Varactor diodes are used as voltage-variable capacitors.

To correctly bias a BJT, reverse-bias the base-emitter junction and forward-bias the base-collector junction.

$\text { Figure } 17 < 4 -If R<sub>1</sub> opens in Figure 17-4, V<sub>C</sub> equals______$ $\text { Figure } 17 < 4$ -If R₁ opens in Figure 17-4, V_C equals______

An op-amp comparator can be used to determineW hen an input voltage crosses a certain reference Voltage.

If a transistor's beta equals 30 and I_B equals 1 mA, I_C equals_____

$\text { Figure } \mathbf { 1 9 } < \mathbf { 1 } -If V<sub>IN</sub> equals 8 V in Figure 19-1, V<sub>OUT</sub> equals_______$ $\text { Figure } \mathbf { 1 9 } < \mathbf { 1 }$ -If V_IN equals 8 V in Figure 19-1, V_OUT equals_______

(a) (b) (c) Figure $16 < 1$ -What is the current through R₁ in Figure 16-1(c) if the diode is germanium?

In using BJT characteristic curves, the straight line drawn between the cutoff and the saturation points is called:

If the "+" lead on an ohmmeter is connected to a diode's anode and the "-" lead on the ohmmeter is connected to the diode's cathode, the measured resistance is normally________

A transistor can be used as an electronic switch.

Figure $18 < 1$ -The circuit in Figure 18-1(c)is known as the ________.

An op-ampW ith a low CMRR easily rejects noise signals that appear at both inputs.

The open-loop voltage gain of an op-amp is very large.

$\text { Figure } 17 < 1 -If R1 opens in Figure 17-1, VC equals .$ $\text { Figure } 17 < 1$ -If R1 opens in Figure 17-1, VC equals .

$\text { Figure } 17 < 4 -Which voltage would enable the circuit in Figure 17-4 to operate with little distortion?$ $\text { Figure } 17 < 4$ -Which voltage would enable the circuit in Figure 17-4 to operate with little distortion?

Figure $18 < 1$ -What is the voltage gain of the amplifier in Figure 18-1(a)?

A common-collector amplifier has a high input impedance compared to a common-emitter amplifier.

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

If an op-amp's output increases 6 V every 18 μs\mu \mathrm { s }μs in response to a step input voltage, the slew rate equals________

The basic op-amp squareW ave oscillator is actually a:

Varactor diodes are used as voltage-variable capacitors.

To correctly bias a BJT, reverse-bias the base-emitter junction and forward-bias the base-collector junction.

Figure 17<4\text { Figure } 17 < 4 Figure 17<4 -If R1 opens in Figure 17-4, VC equals______

An op-amp comparator can be used to determineW hen an input voltage crosses a certain reference Voltage.

If a transistor's beta equals 30 and IB equals 1 mA, IC equals_____

Figure 18<118 < 118<1 -If Rf=100kΩ\mathrm { R } _ { f } = 100 \mathrm { k } \OmegaRf​=100kΩ and Ri=6.8kΩ\mathrm { R } _ { \mathrm { i } } = 6.8 \mathrm { k } \OmegaRi​=6.8kΩ in Figure 18-1(c), the voltage gain equals__________

Figure 19<1\text { Figure } \mathbf { 1 9 } < \mathbf { 1 } Figure 19<1 -If VIN equals 8 V in Figure 19-1, VOUT equals_______

(a) (b) (c) Figure 16<116 < 116<1 -What is the current through R1 in Figure 16-1(c) if the diode is germanium?

In using BJT characteristic curves, the straight line drawn between the cutoff and the saturation points is called:

If the "+" lead on an ohmmeter is connected to a diode's anode and the "-" lead on the ohmmeter is connected to the diode's cathode, the measured resistance is normally________

A transistor can be used as an electronic switch.

Figure 18<118 < 118<1 -The circuit in Figure 18-1(c)is known as the ________.

An op-ampW ith a low CMRR easily rejects noise signals that appear at both inputs.

The open-loop voltage gain of an op-amp is very large.

Figure 17<1\text { Figure } 17 < 1 Figure 17<1 -If R1 opens in Figure 17-1, VC equals ________.

Figure 17<4\text { Figure } 17 < 4 Figure 17<4 -Which voltage would enable the circuit in Figure 17-4 to operate with little distortion?

Figure 18<118 < 118<1 -What is the voltage gain of the amplifier in Figure 18-1(a)?

A common-collector amplifier has a high input impedance compared to a common-emitter amplifier.

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

If an op-amp's output increases 6 V every 18 $\mu \mathrm { s }$ in response to a step input voltage, the slew rate equals________

$\text { Figure } 17 < 4 -If R<sub>1</sub> opens in Figure 17-4, V<sub>C</sub> equals______$ $\text { Figure } 17 < 4$ -If R₁ opens in Figure 17-4, V_C equals______

If a transistor's beta equals 30 and I_B equals 1 mA, I_C equals_____

$\text { Figure } \mathbf { 1 9 } < \mathbf { 1 } -If V<sub>IN</sub> equals 8 V in Figure 19-1, V<sub>OUT</sub> equals_______$ $\text { Figure } \mathbf { 1 9 } < \mathbf { 1 }$ -If V_IN equals 8 V in Figure 19-1, V_OUT equals_______

(a) (b) (c) Figure $16 < 1$ -What is the current through R₁ in Figure 16-1(c) if the diode is germanium?

Figure $18 < 1$ -The circuit in Figure 18-1(c)is known as the ________.

$\text { Figure } 17 < 1 -If R1 opens in Figure 17-1, VC equals .$ $\text { Figure } 17 < 1$ -If R1 opens in Figure 17-1, VC equals .

$\text { Figure } 17 < 4 -Which voltage would enable the circuit in Figure 17-4 to operate with little distortion?$ $\text { Figure } 17 < 4$ -Which voltage would enable the circuit in Figure 17-4 to operate with little distortion?

Figure $18 < 1$ -What is the voltage gain of the amplifier in Figure 18-1(a)?