Question 1

A CMRR of 10,000 means that the op-amp provides that:

Accepted Answer

A)  the common mode input is greatly reduced. 
B)  $\mathrm { Av } ( \mathrm { d } ) / \mathrm { A } _ { \mathrm { C } } \mathrm { m }$  =10,000 . 
C)  the differential input is greatly amplified. 
D)  all of these. 
A)  the common mode input is greatly reduced. 
B)  $\mathrm { Av } ( \mathrm { d } ) / \mathrm { A } _ { \mathrm { C } } \mathrm { m }$  =10,000 . 
C)  the differential input is greatly amplified. 
D)  all of these.

Question 2

At the cutoff frequency of a filter circuit, the output voltage is:

Accepted Answer

A) -20 dB. 
B) -40 dB. 
C) -3 dB. 
D) -10 dB. 
A) -20 dB. 
B) -40 dB. 
C) -3 dB. 
D) -10 dB.

Question 3

A current gain of almost one is a characteristic of a common-base amplifier.

Accepted Answer

A) True 
 B)False

Question 4

Adding impurities to semiconductor materials is called doping

Accepted Answer

A) True 
 B)False

Question 5

A diff-amp With 1 input grounded and the signal voltage applied only to the other input is called:

Accepted Answer

A) single ended. 
B) single output. 
C) single input. 
D) grounded input. 
A) single ended. 
B) single output. 
C) single input. 
D) grounded input.

Question 6

Figure $18 < 1$
-What trouble in the amplifier in Figure 18-1(c)could cause the output voltage to clip severely?

Accepted Answer

A) The input signal is too large. 
B) The power is off. 
C) The amplifierʹs gain is too low. 
D) The input signal is too small for the amplifier to respond. 
A) The input signal is too large. 
B) The power is off. 
C) The amplifierʹs gain is too low. 
D) The input signal is too small for the amplifier to respond.

Question 7

If all four input resistors to a summing amplifier are  2.2 $\mathrm { k } \Omega$ , the feedback resistor is  2.2  $\mathrm { k } \Omega$ and all four input voltages are  -2 V , the output voltage equals_______

Accepted Answer

A)   2 V 
B)   2.2 V 
C)   8 V 
D)   10 V 
A)   2 V 
B)   2.2 V 
C)   8 V 
D)   10 V

Question 8

To build an amplifier with a  5 K$\Omega$ input impedance and a voltage gain of 40 , use the amplifier,  Ri=____ Rf= ____

Accepted Answer

A)  non-inverting, $5 \mathrm { k } \Omega , 40 \mathrm { k \Omega }$ 
B)  non-inverting, $40 \mathrm { k } \Omega , 200 \mathrm { k } \Omega$ 
C)  inverting, $5 \mathrm { k } \Omega , 2 \mathrm { k } \Omega$ 
D)  inverting, $5 \mathrm { k } \Omega , 200 \mathrm { k } \Omega$ 
A)  non-inverting, $5 \mathrm { k } \Omega , 40 \mathrm { k \Omega }$ 
B)  non-inverting, $40 \mathrm { k } \Omega , 200 \mathrm { k } \Omega$ 
C)  inverting, $5 \mathrm { k } \Omega , 2 \mathrm { k } \Omega$ 
D)  inverting, $5 \mathrm { k } \Omega , 200 \mathrm { k } \Omega$

Question 9

A forward-biased germanium diode normally drops about 0.3 V.

Accepted Answer

A) True 
 B)False

Question 10

$\text { Figure } 16<2$

-If a diode in a half- Wave rectifier opens in Figure 16-2, ________.

Accepted Answer

A) the output dcVoltage increases and the ripple frequency decreases 
B) the output dcVoltage decreases and the rippleVoltage increases 
C) the output dcVoltage increases and the rippleVoltage decreases 
D) the output dcVoltage decreases and the rippleVoltage decreases 
A) the output dcVoltage increases and the ripple frequency decreases 
B) the output dcVoltage decreases and the rippleVoltage increases 
C) the output dcVoltage increases and the rippleVoltage decreases 
D) the output dcVoltage decreases and the rippleVoltage decreases

Question 11

If all four input resistors to a summing amplifier are  2.2  $\mathrm { k } \Omega$ and the feedback resistor is  2.2  $\mathrm { k } \Omega$. then the gain equals________

Accepted Answer

A)  4 
B)   2.2 
C)  1 
D)  unknown 
A)  4 
B)   2.2 
C)  1 
D)  unknown

Question 12

\(\text { Figure } 17 C equals  VE  in Figure  17-1 , the_______

Accepted Answer

A)  transistor is cutoff 
B)  emitter has opened 
C)  power is off 
D)  emitter is shorted to the collector 
A)  transistor is cutoff 
B)  emitter has opened 
C)  power is off 
D)  emitter is shorted to the collector

Question 13

The formula for line regulation is:

Accepted Answer

A) $\frac { \Delta \mathrm { V } _ { \mathrm { FL } } } { \Delta \mathrm { V } _ { \mathrm { NL } } } \times 100 \%$ 
B) $\frac { \Delta \mathrm { V } _ { \mathrm { IN } } } { \Delta \mathrm { V } _ { \mathrm { OUT } } } \times 100 \%$ 
C) $\frac { \Delta \mathrm { V } _ { \mathrm { NL } } } { \Delta \mathrm { V } _ { \mathrm { FL } } } \times 100 \%$ 
D) $\frac { \Delta \mathrm { V } _ { \mathrm { OUT } } } { \Delta \mathrm { V } _ { \mathrm { IN } } } \times 100 \%$ 
A) $\frac { \Delta \mathrm { V } _ { \mathrm { FL } } } { \Delta \mathrm { V } _ { \mathrm { NL } } } \times 100 \%$ 
B) $\frac { \Delta \mathrm { V } _ { \mathrm { IN } } } { \Delta \mathrm { V } _ { \mathrm { OUT } } } \times 100 \%$ 
C) $\frac { \Delta \mathrm { V } _ { \mathrm { NL } } } { \Delta \mathrm { V } _ { \mathrm { FL } } } \times 100 \%$ 
D) $\frac { \Delta \mathrm { V } _ { \mathrm { OUT } } } { \Delta \mathrm { V } _ { \mathrm { IN } } } \times 100 \%$

Question 14

(a)
 
(b)
 
(c)

Figure $16 < 1$

-What is the voltage across the silicon diode in Figure 16-1(b)?

Accepted Answer

A) 0.3V 
B) -0.7V 
C) 1.0V 
D) 0.7V 
A) 0.3V 
B) -0.7V 
C) 1.0V 
D) 0.7V

Question 15

The forward bias on a P-N diode to make the diode conduct must be greater than the:

Accepted Answer

A) barrier potential. 
B) conduction bond. 
C) volence bond. 
D) reverse bias. 
A) barrier potential. 
B) conduction bond. 
C) volence bond. 
D) reverse bias.

Question 16

A zener diode is used as a constant voltage regulator.

Accepted Answer

A) True 
 B)False

Question 17

When the positive lead of an ohmmeter is connected to the cathode of a diode and the negative lead is connected to the anode, the meter reads_________

Accepted Answer

A)  an infinitely high resistance 
B)  a very low resistance 
C)  a high resistance initially, decreasing to about  100$\Omega$ 
D)  a gradually increasing resistance 
A)  an infinitely high resistance 
B)  a very low resistance 
C)  a high resistance initially, decreasing to about  100$\Omega$ 
D)  a gradually increasing resistance

Question 18

Figure $18 < 1$
-Identify the non-inverting amplifier in Figure 18-1.

Accepted Answer

A) Figure 18-1(a) 
B) Figure 18-1(b) 
C) Both A and B 
D) Neither of these 
A) Figure 18-1(a) 
B) Figure 18-1(b) 
C) Both A and B 
D) Neither of these

Question 19

\[\text { Figure } \mathbf { 1 9 } IN=-3 V in Figure 19-1, VOUT equals________

Accepted Answer

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

Question 20

(a)
 
(b)
 
(c)

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

Accepted Answer

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

A CMRR of 10,000 means that the op-amp provides that:

At the cutoff frequency of a filter circuit, the output voltage is:

A current gain of almost one is a characteristic of a common-base amplifier.

Adding impurities to semiconductor materials is called doping

A diff-amp With 1 input grounded and the signal voltage applied only to the other input is called:

Figure $18 < 1$ -What trouble in the amplifier in Figure 18-1(c)could cause the output voltage to clip severely?

If all four input resistors to a summing amplifier are 2.2 $\mathrm { k } \Omega$ , the feedback resistor is 2.2 $\mathrm { k } \Omega$ and all four input voltages are -2 V , the output voltage equals_______

To build an amplifier with a 5 K $\Omega$ input impedance and a voltage gain of 40 , use the amplifier, R_i=____ R_f= ____

A forward-biased germanium diode normally drops about 0.3 V.

$\text { Figure } 16<2 -If a diode in a half- Wave rectifier opens in Figure 16-2, .$ $\text { Figure } 16<2$ -If a diode in a half- Wave rectifier opens in Figure 16-2, .

If all four input resistors to a summing amplifier are 2.2 $\mathrm { k } \Omega$ and the feedback resistor is 2.2 $\mathrm { k } \Omega$ . then the gain equals________

$\text { Figure } 17 < 1 -If V<sub>C</sub> equals V<sub>E</sub> in Figure 17-1 , the_______$ $\text { Figure } 17 < 1$ -If V_C equals V_E in Figure 17-1 , the_______

The formula for line regulation is:

(a) (b) (c) Figure $16 < 1$ -What is the voltage across the silicon diode in Figure 16-1(b)?

The forward bias on a P-N diode to make the diode conduct must be greater than the:

A zener diode is used as a constant voltage regulator.

When the positive lead of an ohmmeter is connected to the cathode of a diode and the negative lead is connected to the anode, the meter reads_________

Figure $18 < 1$ -Identify the non-inverting amplifier in Figure 18-1.

$\text { Figure } \mathbf { 1 9 } < \mathbf { 1 } -If V<sub>IN</sub>=-3 V in Figure 19-1, V<sub>OUT</sub> equals________$ $\text { Figure } \mathbf { 1 9 } < \mathbf { 1 }$ -If V_IN=-3 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 silicon?

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

A CMRR of 10,000 means that the op-amp provides that:

At the cutoff frequency of a filter circuit, the output voltage is:

A current gain of almost one is a characteristic of a common-base amplifier.

Adding impurities to semiconductor materials is called doping

A diff-amp With 1 input grounded and the signal voltage applied only to the other input is called:

Figure 18<118 < 118<1 -What trouble in the amplifier in Figure 18-1(c)could cause the output voltage to clip severely?

If all four input resistors to a summing amplifier are 2.2 kΩ\mathrm { k } \OmegakΩ , the feedback resistor is 2.2 kΩ\mathrm { k } \OmegakΩ and all four input voltages are -2 V , the output voltage equals_______

To build an amplifier with a 5 K Ω\OmegaΩ input impedance and a voltage gain of 40 , use the amplifier, Ri=____ Rf= ____

A forward-biased germanium diode normally drops about 0.3 V.

Figure 16<2\text { Figure } 16<2 Figure 16<2 -If a diode in a half- Wave rectifier opens in Figure 16-2, ________.

If all four input resistors to a summing amplifier are 2.2 kΩ\mathrm { k } \OmegakΩ and the feedback resistor is 2.2 kΩ\mathrm { k } \OmegakΩ . then the gain equals________

Figure 17<1\text { Figure } 17 < 1 Figure 17<1 -If VC equals VE in Figure 17-1 , the_______

The formula for line regulation is:

(a) (b) (c) Figure 16<116 < 116<1 -What is the voltage across the silicon diode in Figure 16-1(b)?

The forward bias on a P-N diode to make the diode conduct must be greater than the:

A zener diode is used as a constant voltage regulator.

When the positive lead of an ohmmeter is connected to the cathode of a diode and the negative lead is connected to the anode, the meter reads_________

Figure 18<118 < 118<1 -Identify the non-inverting amplifier in Figure 18-1.

Figure 19<1\text { Figure } \mathbf { 1 9 } < \mathbf { 1 } Figure 19<1 -If VIN=-3 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 silicon?

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

Figure $18 < 1$ -What trouble in the amplifier in Figure 18-1(c)could cause the output voltage to clip severely?

If all four input resistors to a summing amplifier are 2.2 $\mathrm { k } \Omega$ , the feedback resistor is 2.2 $\mathrm { k } \Omega$ and all four input voltages are -2 V , the output voltage equals_______

To build an amplifier with a 5 K $\Omega$ input impedance and a voltage gain of 40 , use the amplifier, R_i=____ R_f= ____

$\text { Figure } 16<2 -If a diode in a half- Wave rectifier opens in Figure 16-2, .$ $\text { Figure } 16<2$ -If a diode in a half- Wave rectifier opens in Figure 16-2, .

If all four input resistors to a summing amplifier are 2.2 $\mathrm { k } \Omega$ and the feedback resistor is 2.2 $\mathrm { k } \Omega$ . then the gain equals________

$\text { Figure } 17 < 1 -If V<sub>C</sub> equals V<sub>E</sub> in Figure 17-1 , the_______$ $\text { Figure } 17 < 1$ -If V_C equals V_E in Figure 17-1 , the_______

(a) (b) (c) Figure $16 < 1$ -What is the voltage across the silicon diode in Figure 16-1(b)?

Figure $18 < 1$ -Identify the non-inverting amplifier in Figure 18-1.

$\text { Figure } \mathbf { 1 9 } < \mathbf { 1 } -If V<sub>IN</sub>=-3 V in Figure 19-1, V<sub>OUT</sub> equals________$ $\text { Figure } \mathbf { 1 9 } < \mathbf { 1 }$ -If V_IN=-3 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 silicon?