Question 1

To recognize transistor packages and identify the terminals, look for:

Accepted Answer

A) the flat side. 
B) the imprinted dot. 
C) the protruding tab. 
D) all of these. 
A) the flat side. 
B) the imprinted dot. 
C) the protruding tab. 
D) all of these. D

Question 2

\[\text { Figure } \mathbf { 1 7 } 1, L2  and C1  form a_______ that provides________ feedback to the amplifier.

Accepted Answer

A)  tank circuit, negative 
B)  tank circuit, out-of-phase 
C)  feedback network, negative 
D)  tank circuit, positive 
A)  tank circuit, negative 
B)  tank circuit, out-of-phase 
C)  feedback network, negative 
D)  tank circuit, positive D

Question 3

Figure $19 < 2$
-If the inputs are 1.2 V, -0.5 V and 2.4 V in Figure 19-2(b),W hat is the output voltage?

Accepted Answer

A) 13V 
B) -6.2V 
C) 6.2V 
D) -4.1V 
A) 13V 
B) -6.2V 
C) 6.2V 
D) -4.1V B

Question 4

A full- Wave rectifier requires ________.

Accepted Answer

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

Question 5

The output signal of a CE amplifier is always ________.

Accepted Answer

A) out-of-phaseW
Ith the input signal 
B) equal to the input signal 
C) in-phaseW
Ith the input signal 
D) larger than the input signal 
A) out-of-phaseW
Ith the input signal 
B) equal to the input signal 
C) in-phaseW
Ith the input signal 
D) larger than the input signal

Question 6

When a BJT amplifier is saturated,  VCE is about______ and  IC  is____

Accepted Answer

A)  zero, maximum 
B)   25 V, 10 mA 
C)   VCC , minimum 
D)  zero, minimum 
A)  zero, maximum 
B)   25 V, 10 mA 
C)   VCC , minimum 
D)  zero, minimum

Question 7

A diff-amp With two identical signal voltage applied to the two inputs is called:

Accepted Answer

A) same phase input. 
B) common mode output. 
C) common mode input. 
D) same signal input. 
A) same phase input. 
B) common mode output. 
C) common mode input. 
D) same signal input.

Question 8

$\text { Figure } 17 < 1$
-If R2 opens in Figure 17-1, IC ________.

Accepted Answer

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

Question 9

The op-amp configurationW ith the highest possible input impedance is:

Accepted Answer

A) voltage-follower op-amp. 
B) inverting op-amp. 
C) non-inverting op-amp. 
D) differential op-amp. 
A) voltage-follower op-amp. 
B) inverting op-amp. 
C) non-inverting op-amp. 
D) differential op-amp.

Question 10

(a)
 
(b)
 
(c)

Figure \(16 R2  is ____________

Accepted Answer

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

Question 11

An op-amp summing amplifier has no limitations on the number of inputs it can handle.

Accepted Answer

A) True 
 B)False

Question 12

Figure $19 < 2$
-If the inputs are 4.1 V, -0.7 V and 3.1 V in Figure 19-2(b), the output voltage equals ________.

Accepted Answer

A) -6.5V 
B) 13V 
C) -13V 
D) 6.5V 
A) -6.5V 
B) 13V 
C) -13V 
D) 6.5V

Question 13

Figure $17 < 3$
-The symbol in Figure 17-3(a)represents the ________.

Accepted Answer

A) N-channel enhancement-type JFET 
B) N-channel enhancement-type MOSFET 
C) P-channel enhancement-type MOSFET 
D) N-channel depletion-type JFET 
A) N-channel enhancement-type JFET 
B) N-channel enhancement-type MOSFET 
C) P-channel enhancement-type MOSFET 
D) N-channel depletion-type JFET

Question 14

Crossover distortion occurs in a ________ amplifierW hen the amplifier is biased at ________.

Accepted Answer

A) push-pull, cutoff 
B) common-emitter, saturation 
C) push-pull, saturation 
D) common-source, cutoff 
A) push-pull, cutoff 
B) common-emitter, saturation 
C) push-pull, saturation 
D) common-source, cutoff

Question 15

\[\text { Figure } 19 CO equals________

Accepted Answer

A)   145 Hz 
B)   4.8 Hz 
C)   48 Hz 
D)   1.45 kHz 
A)   145 Hz 
B)   4.8 Hz 
C)   48 Hz 
D)   1.45 kHz

Question 16

If a common-emitter amplifier measures the same voltage on the collector as VCC , the amplifier is operating in saturation.

Accepted Answer

A) True 
 B)False

Question 17

A diff-amp With two out-of-phase signal voltages applied to the two inputs is called:

Accepted Answer

A) differential input. 
B) differential output. 
C) phase inverter output. 
D) phase inverter input. 
A) differential input. 
B) differential output. 
C) phase inverter output. 
D) phase inverter input.

Question 18

Figure $19 < 5$
-The curve in Figure 19-5 is from a ________ and its lower cutoff frequency equals ________.

Accepted Answer

A) two-pole high-pass filter, 1500 Hz 
B) band-reject filter, 450 kHz 
C) band-pass filter, 822 Hz 
D) band-pass filter, 450 Hz 
A) two-pole high-pass filter, 1500 Hz 
B) band-reject filter, 450 kHz 
C) band-pass filter, 822 Hz 
D) band-pass filter, 450 Hz

Question 19

(a)
 
(b)
 
(c)

Figure $16 < 1$

-If the diode is made of silicon in Figure 16-1(b),W hat is the current?

Accepted Answer

A) 9.4 mA 
B) 0 A 
C) 10 mA 
D) 8.6 mA 
A) 9.4 mA 
B) 0 A 
C) 10 mA 
D) 8.6 mA

Question 20

If a forward biased silicon diode is in series with a 22   resistor and a  10 V  source, the voltage across the diode is ________ and the voltage across the resistor is___________

Accepted Answer

A)   0.3 V, 9.7 V 
B)   9.7 V, 0.3 V 
C)   0.7 V, 9.3 V 
D)   9.3 V, 0.7 V 
A)   0.3 V, 9.7 V 
B)   9.7 V, 0.3 V 
C)   0.7 V, 9.3 V 
D)   9.3 V, 0.7 V

To recognize transistor packages and identify the terminals, look for:

$\text { Figure } \mathbf { 1 7 } < 5 -In Figure 17-5, L<sub>1</sub>, L<sub>2</sub> and C<sub>1</sub> form a___ that provides feedback to the amplifier.$ $\text { Figure } \mathbf { 1 7 } < 5$ -In Figure 17-5, L₁, L₂ and C₁ form a_ that provides______ feedback to the amplifier.

Figure $19 < 2$ -If the inputs are 1.2 V, -0.5 V and 2.4 V in Figure 19-2(b),W hat is the output voltage?

A full- Wave rectifier requires ________.

The output signal of a CE amplifier is always ________.

When a BJT amplifier is saturated, V_CE is about______ and I_C is____

A diff-amp With two identical signal voltage applied to the two inputs is called:

$\text { Figure } 17 < 1 -If R2 opens in Figure 17-1, IC .$ $\text { Figure } 17 < 1$ -If R2 opens in Figure 17-1, IC .

The op-amp configurationW ith the highest possible input impedance is:

(a) (b) (c) Figure $16 < 1$ -If the polarity of the source voltage is reversed in Figure 16-1(c), V_R2 is ____________

An op-amp summing amplifier has no limitations on the number of inputs it can handle.

Figure $19 < 2$ -If the inputs are 4.1 V, -0.7 V and 3.1 V in Figure 19-2(b), the output voltage equals ________.

Figure $17 < 3$ -The symbol in Figure 17-3(a)represents the ________.

Crossover distortion occurs in a amplifierW hen the amplifier is biased at .

$\text { Figure } 19 < 3 -If R=22 \mathrm { k } \Omega and C=0.05 \mu \mathrm { F } in Figure 19-3, f<sub>CO</sub> equals________$ $\text { Figure } 19 < 3$ -If R=22 $\mathrm { k } \Omega$ and C=0.05 $\mu \mathrm { F }$ in Figure 19-3, f_CO equals________

If a common-emitter amplifier measures the same voltage on the collector as V_CC , the amplifier is operating in saturation.

A diff-amp With two out-of-phase signal voltages applied to the two inputs is called:

Figure $19 < 5$ -The curve in Figure 19-5 is from a and its lower cutoff frequency equals .

(a) (b) (c) Figure $16 < 1$ -If the diode is made of silicon in Figure 16-1(b),W hat is the current?

If a forward biased silicon diode is in series with a 22 resistor and a 10 V source, the voltage across the diode is and the voltage across the resistor is___

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

To recognize transistor packages and identify the terminals, look for:

Figure 17<5\text { Figure } \mathbf { 1 7 } < 5 Figure 17<5 -In Figure 17-5, L1, L2 and C1 form a_______ that provides________ feedback to the amplifier.

Figure 19<219 < 219<2 -If the inputs are 1.2 V, -0.5 V and 2.4 V in Figure 19-2(b),W hat is the output voltage?

A full- Wave rectifier requires ________.

The output signal of a CE amplifier is always ________.

When a BJT amplifier is saturated, VCE is about______ and IC is____

A diff-amp With two identical signal voltage applied to the two inputs is called:

Figure 17<1\text { Figure } 17 < 1 Figure 17<1 -If R2 opens in Figure 17-1, IC ________.

The op-amp configurationW ith the highest possible input impedance is:

(a) (b) (c) Figure 16<116 < 116<1 -If the polarity of the source voltage is reversed in Figure 16-1(c), VR2 is ____________

An op-amp summing amplifier has no limitations on the number of inputs it can handle.

Figure 19<219 < 219<2 -If the inputs are 4.1 V, -0.7 V and 3.1 V in Figure 19-2(b), the output voltage equals ________.

Figure 17<317 < 317<3 -The symbol in Figure 17-3(a)represents the ________.

Crossover distortion occurs in a ________ amplifierW hen the amplifier is biased at ________.

Figure 19<3\text { Figure } 19 < 3 Figure 19<3 -If R=22 kΩ\mathrm { k } \OmegakΩ and C=0.05 μF\mu \mathrm { F }μF in Figure 19-3, fCO equals________

If a common-emitter amplifier measures the same voltage on the collector as VCC , the amplifier is operating in saturation.

A diff-amp With two out-of-phase signal voltages applied to the two inputs is called:

Figure 19<519 < 519<5 -The curve in Figure 19-5 is from a ________ and its lower cutoff frequency equals ________.

(a) (b) (c) Figure 16<116 < 116<1 -If the diode is made of silicon in Figure 16-1(b),W hat is the current?

If a forward biased silicon diode is in series with a 22 resistor and a 10 V source, the voltage across the diode is ________ and the voltage across the resistor is___________

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

$\text { Figure } \mathbf { 1 7 } < 5 -In Figure 17-5, L<sub>1</sub>, L<sub>2</sub> and C<sub>1</sub> form a___ that provides feedback to the amplifier.$ $\text { Figure } \mathbf { 1 7 } < 5$ -In Figure 17-5, L₁, L₂ and C₁ form a_ that provides______ feedback to the amplifier.

Figure $19 < 2$ -If the inputs are 1.2 V, -0.5 V and 2.4 V in Figure 19-2(b),W hat is the output voltage?

When a BJT amplifier is saturated, V_CE is about______ and I_C is____

$\text { Figure } 17 < 1 -If R2 opens in Figure 17-1, IC .$ $\text { Figure } 17 < 1$ -If R2 opens in Figure 17-1, IC .

(a) (b) (c) Figure $16 < 1$ -If the polarity of the source voltage is reversed in Figure 16-1(c), V_R2 is ____________

Figure $19 < 2$ -If the inputs are 4.1 V, -0.7 V and 3.1 V in Figure 19-2(b), the output voltage equals ________.

Figure $17 < 3$ -The symbol in Figure 17-3(a)represents the ________.

Crossover distortion occurs in a amplifierW hen the amplifier is biased at .

$\text { Figure } 19 < 3 -If R=22 \mathrm { k } \Omega and C=0.05 \mu \mathrm { F } in Figure 19-3, f<sub>CO</sub> equals________$ $\text { Figure } 19 < 3$ -If R=22 $\mathrm { k } \Omega$ and C=0.05 $\mu \mathrm { F }$ in Figure 19-3, f_CO equals________

If a common-emitter amplifier measures the same voltage on the collector as V_CC , the amplifier is operating in saturation.

Figure $19 < 5$ -The curve in Figure 19-5 is from a and its lower cutoff frequency equals .

(a) (b) (c) Figure $16 < 1$ -If the diode is made of silicon in Figure 16-1(b),W hat is the current?

If a forward biased silicon diode is in series with a 22 resistor and a 10 V source, the voltage across the diode is and the voltage across the resistor is___