Question 1

A test instrument designed to be used for the testing of capacitors is the ________.

Accepted Answer

A) oscilloscope 
B) LCR Meter 
C) digital multimeter 
D) analog multimeter 
A) oscilloscope 
B) LCR Meter 
C) digital multimeter 
D) analog multimeter

Question 2

If a 47 $\mu \vec { F }$ capacitor is connected to a  20V, 400Hz source, the current is__________

Accepted Answer

A)   0.851  A 
B)   2.36  A 
C)   8.51  A 
D)   425  A 
A)   0.851  A 
B)   2.36  A 
C)   8.51  A 
D)   425  A

Question 3

Capacitance is the ability to store Voltage.

Accepted Answer

A) True 
 B)False

Question 4

If a  4.7  $\mu \mathrm { F }$ capacitor operates at  10 kHz, $X _ { C }$ equals____

Accepted Answer

A)   3.39  $\Omega$ 
B)   339   
C)  294   
D)  infinite $\Omega$ 
A)   3.39  $\Omega$ 
B)   339   
C)  294   
D)  infinite $\Omega$

Question 5

If a  0.05 $\mu \mathrm { F }$  and  0.1$\mu \mathrm { F }$ capacitor are connected in parallel across a  20 V  source, the total capacitance equals______ and each capacitor drops________

Accepted Answer

A)   0.10 $\mu \mathrm { F }$, 20 V 
B)   0.05 $\mu \mathrm { F }$, 15 V 
C)   0.15 $\mu F$, 10 V 
D)   0.15  $\mu \mathrm { F }$,  20 V 
A)   0.10 $\mu \mathrm { F }$, 20 V 
B)   0.05 $\mu \mathrm { F }$, 15 V 
C)   0.15 $\mu F$, 10 V 
D)   0.15  $\mu \mathrm { F }$,  20 V

Question 6

If a 1 $\mu \mathrm { F }$ capacitor and a 10 $k \Omega$ resistor are connected in series across 20 $\operatorname { V_ {DC} }$, , approximately how much voltage will the capacitor drop after charging for just one time constant?

Accepted Answer

A)   12.6 V 
B)   11.0 V 
C)   12.1 V 
D)   17 V 
A)   12.6 V 
B)   11.0 V 
C)   12.1 V 
D)   17 V

Question 7

A capacitor blocks dc and passes ac.

Accepted Answer

A) True 
 B)False

Question 8

When capacitors are connected in series, their total capacitance act like:

Accepted Answer

A) resistance connected in series-parallel. 
B) resistance connected in parallel. 
C) resistance connected in series. 
D) all of these. 
A) resistance connected in series-parallel. 
B) resistance connected in parallel. 
C) resistance connected in series. 
D) all of these.

Question 9

When connecting a large electrolytic capacitor to a circuit With a 100 VDC source, place the negative end of the capacitor ________.

Accepted Answer

A) towards the negative side of the source 
B) towards the positive side of the source 
C) in either position; the polarity is not important 
A) towards the negative side of the source 
B) towards the positive side of the source 
C) in either position; the polarity is not important

Question 10

\[\text { Figure } 9 T in Figure 9-1?

Accepted Answer

A)   70.1 $\text { uF }$ 
B)   25.2  $\mu \mathrm { F }$ 
C)   8.78 $\mu \mathrm { F }$ 
D)  82 $\mu \mathrm { F }$ 
A)   70.1 $\text { uF }$ 
B)   25.2  $\mu \mathrm { F }$ 
C)   8.78 $\mu \mathrm { F }$ 
D)  82 $\mu \mathrm { F }$

Question 11

What is the minimum dc working voltage rating for a capacitor that must drop  120 VRMS  ?

Accepted Answer

A)   84.8  V 
B)   120  V 
C)   170  V 
D)   339  V 
A)   84.8  V 
B)   120  V 
C)   170  V 
D)   339  V

Question 12

The removal of high frequency transient voltages With a capacitor is called:

Accepted Answer

A) ac blocking. 
B) decoupling. 
C) coupling. 
D) bypassing. 
A) ac blocking. 
B) decoupling. 
C) coupling. 
D) bypassing.

Question 13

What is one time constant of a  4.7  $\mu \mathrm { F }$ capacitor in series with a 22 $k \Omega$ resistor?

Accepted Answer

A)   1.03 ms 
B)   103  ms 
C)   0.103  ms 
D)   10.3  ms 
A)   1.03 ms 
B)   103  ms 
C)   0.103  ms 
D)   10.3  ms

Question 14

A capacitor that transfers an ac signal from one stage to another is called a ________ capacitor.

Accepted Answer

A) filter 
B) coupling 
C) transfer 
D) bypass 
A) filter 
B) coupling 
C) transfer 
D) bypass

Question 15

Leakage through a capacitor is undesirable.

Accepted Answer

A) True 
 B)False

Question 16

What is one time constant of a  47 $\mu \mathrm { F }$  capacitor in series with a 120 $\mathrm { k } \Omega$
 resistor?

Accepted Answer

A)   5.64  s 
B)   0.564 ms 
C)   54.6 s 
D)   564 ms 
A)   5.64  s 
B)   0.564 ms 
C)   54.6 s 
D)   564 ms

Question 17

If a  0.047 $\mu \mathrm { F }$ capacitor operates at  220 kHz , $X _ { C }$ equals______

Accepted Answer

A)   154 $\Omega$ 
B)   15.4  $\mathrm { k } \Omega$ 
C)   1.54  $k \Omega$ 
D)   15.4 $\Omega$ 
A)   154 $\Omega$ 
B)   15.4  $\mathrm { k } \Omega$ 
C)   1.54  $k \Omega$ 
D)   15.4 $\Omega$

Question 18

A 65 Vrms signal is applied to a 10 F capacitor.What is the total peak current?

Accepted Answer

A) 6.5 kA 
B) 6.5 A 
C) 153 mA 
D) not enough information 
A) 6.5 kA 
B) 6.5 A 
C) 153 mA 
D) not enough information

Question 19

With three capacitors in series, the current lags the voltage by:

Accepted Answer

A) 30 degrees. 
B) 90 degrees. 
C) 45 degrees. 
D) none of the above. 
A) 30 degrees. 
B) 90 degrees. 
C) 45 degrees. 
D) none of the above.

Question 20

If a  0.1 $\mu F$ , 0.1 $\mu \mathrm { F }$ and  0.05 $\mu \mathrm { F }$ capacitor are connected in series across a  75 V source, the voltage drop across the smallest capacitor equals_____

Accepted Answer

A)   50  V 
B)   100  V 
C)   37.5 V 
D)   18.8  V 
A)   50  V 
B)   100  V 
C)   37.5 V 
D)   18.8  V

A test instrument designed to be used for the testing of capacitors is the ________.

If a 47 $\mu \vec { F }$ capacitor is connected to a 20V, 400Hz source, the current is__________

Capacitance is the ability to store Voltage.

If a 4.7 $\mu \mathrm { F }$ capacitor operates at 10 kHz, $X _ { C }$ equals____

If a 0.05 $\mu \mathrm { F }$ and 0.1 $\mu \mathrm { F }$ capacitor are connected in parallel across a 20 V source, the total capacitance equals and each capacitor drops__

If a 1 $\mu \mathrm { F }$ capacitor and a 10 $k \Omega$ resistor are connected in series across 20 $\operatorname { V_ {DC} }$ , , approximately how much voltage will the capacitor drop after charging for just one time constant?

A capacitor blocks dc and passes ac.

When capacitors are connected in series, their total capacitance act like:

When connecting a large electrolytic capacitor to a circuit With a 100 VDC source, place the negative end of the capacitor ________.

$\text { Figure } 9 < 1 -What is C<sub>T</sub> in Figure 9-1?$ $\text { Figure } 9 < 1$ -What is C_T in Figure 9-1?

What is the minimum dc working voltage rating for a capacitor that must drop 120 V_RMS ?

The removal of high frequency transient voltages With a capacitor is called:

What is one time constant of a 4.7 $\mu \mathrm { F }$ capacitor in series with a 22 $k \Omega$ resistor?

A capacitor that transfers an ac signal from one stage to another is called a ________ capacitor.

Leakage through a capacitor is undesirable.

What is one time constant of a 47 $\mu \mathrm { F }$ capacitor in series with a 120 $\mathrm { k } \Omega$ resistor?

If a 0.047 $\mu \mathrm { F }$ capacitor operates at 220 kHz , $X _ { C }$ equals______

A 65 Vrms signal is applied to a 10 F capacitor.What is the total peak current?

With three capacitors in series, the current lags the voltage by:

If a 0.1 $\mu F$ , 0.1 $\mu \mathrm { F }$ and 0.05 $\mu \mathrm { F }$ capacitor are connected in series across a 75 V source, the voltage drop across the smallest capacitor equals_____

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

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Time Response of Reactive Circuits

Transformers

Regulators, Filters, and Op-Amps

Understanding Transducers, Sensors, and Conversion in Industrial Processes

Filters

Exam 9: Capacitors

A test instrument designed to be used for the testing of capacitors is the ________.

If a 47 μF⃗\mu \vec { F }μF capacitor is connected to a 20V, 400Hz source, the current is__________

Capacitance is the ability to store Voltage.

If a 4.7 μF\mu \mathrm { F }μF capacitor operates at 10 kHz, XCX _ { C }XC​ equals____

If a 0.05 μF\mu \mathrm { F }μF and 0.1 μF\mu \mathrm { F }μF capacitor are connected in parallel across a 20 V source, the total capacitance equals______ and each capacitor drops________

If a 1 μF\mu \mathrm { F }μF capacitor and a 10 kΩk \OmegakΩ resistor are connected in series across 20 VDC⁡\operatorname { V_ {DC} }VDC​ , , approximately how much voltage will the capacitor drop after charging for just one time constant?

A capacitor blocks dc and passes ac.

When capacitors are connected in series, their total capacitance act like:

When connecting a large electrolytic capacitor to a circuit With a 100 VDC source, place the negative end of the capacitor ________.

Figure 9<1\text { Figure } 9 < 1 Figure 9<1 -What is CT in Figure 9-1?

What is the minimum dc working voltage rating for a capacitor that must drop 120 VRMS ?

The removal of high frequency transient voltages With a capacitor is called:

What is one time constant of a 4.7 μF\mu \mathrm { F }μF capacitor in series with a 22 kΩk \OmegakΩ resistor?

A capacitor that transfers an ac signal from one stage to another is called a ________ capacitor.

Leakage through a capacitor is undesirable.

What is one time constant of a 47 μF\mu \mathrm { F }μF capacitor in series with a 120 kΩ\mathrm { k } \OmegakΩ resistor?

If a 0.047 μF\mu \mathrm { F }μF capacitor operates at 220 kHz , XCX _ { C }XC​ equals______

A 65 Vrms signal is applied to a 10 F capacitor.What is the total peak current?

With three capacitors in series, the current lags the voltage by:

If a 0.1 μF\mu FμF , 0.1 μF\mu \mathrm { F }μF and 0.05 μF\mu \mathrm { F }μF capacitor are connected in series across a 75 V source, the voltage drop across the smallest capacitor equals_____

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

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Time Response of Reactive Circuits

Transformers

Regulators, Filters, and Op-Amps

Understanding Transducers, Sensors, and Conversion in Industrial Processes

Filters

If a 47 $\mu \vec { F }$ capacitor is connected to a 20V, 400Hz source, the current is__________

If a 4.7 $\mu \mathrm { F }$ capacitor operates at 10 kHz, $X _ { C }$ equals____

If a 0.05 $\mu \mathrm { F }$ and 0.1 $\mu \mathrm { F }$ capacitor are connected in parallel across a 20 V source, the total capacitance equals and each capacitor drops__

If a 1 $\mu \mathrm { F }$ capacitor and a 10 $k \Omega$ resistor are connected in series across 20 $\operatorname { V_ {DC} }$ , , approximately how much voltage will the capacitor drop after charging for just one time constant?

$\text { Figure } 9 < 1 -What is C<sub>T</sub> in Figure 9-1?$ $\text { Figure } 9 < 1$ -What is C_T in Figure 9-1?

What is the minimum dc working voltage rating for a capacitor that must drop 120 V_RMS ?

What is one time constant of a 4.7 $\mu \mathrm { F }$ capacitor in series with a 22 $k \Omega$ resistor?

What is one time constant of a 47 $\mu \mathrm { F }$ capacitor in series with a 120 $\mathrm { k } \Omega$ resistor?

If a 0.047 $\mu \mathrm { F }$ capacitor operates at 220 kHz , $X _ { C }$ equals______

If a 0.1 $\mu F$ , 0.1 $\mu \mathrm { F }$ and 0.05 $\mu \mathrm { F }$ capacitor are connected in series across a 75 V source, the voltage drop across the smallest capacitor equals_____