Question 1

In an RC parallel circuit, ET = 240 V, R = 40 Ω , and XC = 30 Ω . What is IR?

Accepted Answer

A)  3.42 A 
B)  4 A 
C)  4.8 A 
D)  6 A 
A)  3.42 A 
B)  4 A 
C)  4.8 A 
D)  6 A D

Question 2

In an RC parallel circuit, the amount of phase angle shift depends on the ratio of the amount of _____.

Accepted Answer

A)  resistance to capacitance 
B)  watts to volt-amperes 
C)  capacitance to voltage 
D)  VARs to volt-amperes 
A)  resistance to capacitance 
B)  watts to volt-amperes 
C)  capacitance to voltage 
D)  VARs to volt-amperes A

Question 3

In an RC parallel circuit, ET = 240 V, R = 10 k Ω , and XC = 8.2 k Ω . What is IC?

Accepted Answer

A)  18.56 mA 
B)  29.27 mA 
C)  33.18 mA 
D)  44 mA 
A)  18.56 mA 
B)  29.27 mA 
C)  33.18 mA 
D)  44 mA B

Question 4

In an RC parallel circuit, ET = 277 V, R = 82 k Ω , and XC = 33 k Ω . What is the apparent power?

Accepted Answer

A)  2.33 VA 
B)  2.51 VA 
C)  2.93 VA 
D)  3.26 VA 
A)  2.33 VA 
B)  2.51 VA 
C)  2.93 VA 
D)  3.26 VA

Question 5

In an RC parallel circuit, ET = 120 V, R = 3.6 k Ω , and XC = 5.6 k Ω . What is P?

Accepted Answer

A)  4 W 
B)  5.57 W 
C)  6.16 W 
D)  7 W 
A)  4 W 
B)  5.57 W 
C)  6.16 W 
D)  7 W

Question 6

In an RC parallel circuit, ET = 120 V, R = 420 Ω , and XC = 330 Ω . What is Z?

Accepted Answer

A)  140 Ω 
B)  230 Ω 
C)  259.62 Ω 
D)  534.13 Ω 
A)  140 Ω 
B)  230 Ω 
C)  259.62 Ω 
D)  534.13 Ω

Question 7

In an RC parallel circuit, ET = 120 V, R = 47 k Ω , and XC = 27 k Ω . What is IT?

Accepted Answer

A)  4.62 mA 
B)  5.13 mA 
C)  6.44 mA 
D)  7.55 mA 
A)  4.62 mA 
B)  5.13 mA 
C)  6.44 mA 
D)  7.55 mA

Question 8

In an RC parallel circuit, ET = 240 V, R = 30 Ω , and XC = 60 Ω . What is the phase angle (angle theta)?

Accepted Answer

A)  26.57 ° 
B)  30 ° 
C)  63.43 ° 
D)  90 ° 
A)  26.57 ° 
B)  30 ° 
C)  63.43 ° 
D)  90 °

Question 9

In an RC parallel circuit, the supply voltage is 120 V, 60 Hz. The resistance is 40 Ω and the capacitive reactance is 30 Ω . What is the capacitance of the capacitor?

Accepted Answer

A)  37.89 μ F 
B)  53.05 μ F 
C)  66.31 μ F 
D)  88.42 μ F 
A)  37.89 μ F 
B)  53.05 μ F 
C)  66.31 μ F 
D)  88.42 μ F

Question 10

In an RC parallel circuit, ET = 120 V, R = 40 Ω , and XC = 30 Ω . What is the power factor?

Accepted Answer

A)  60% 
B)  80% 
C)  100% 
D)  133% 
A)  60% 
B)  80% 
C)  100% 
D)  133%

Question 11

In an RC parallel circuit, ET = 240 V, R = 4 k Ω , and XC = 3.3 k Ω . What is IR?

Accepted Answer

A)  32.88 mA 
B)  46.28 mA 
C)  60 mA 
D)  72.72 mA 
A)  32.88 mA 
B)  46.28 mA 
C)  60 mA 
D)  72.72 mA

Question 12

In an RC parallel circuit, ET = 120 V, R = 300 Ω , and XC = 400 Ω . What is P?

Accepted Answer

A)  20.57 W 
B)  36 W 
C)  48.8 W 
D)  58 W 
A)  20.57 W 
B)  36 W 
C)  48.8 W 
D)  58 W

Question 13

In an RC parallel circuit, ET = 240 V, R = 40 Ω , and XC = 30 Ω . What is IC?

Accepted Answer

A)  3.42 A 
B)  4.8 A 
C)  6 A 
D)  8 A 
A)  3.42 A 
B)  4.8 A 
C)  6 A 
D)  8 A

Question 14

In an RC parallel circuit, the current flow through the capacitor will lead both the resistive current and applied voltage by _____.

Accepted Answer

A)  60 ° 
B)  90 ° 
C)  180 ° 
D)  360 ° 
A)  60 ° 
B)  90 ° 
C)  180 ° 
D)  360 °

Question 15

In an RC parallel circuit, ET = 240 V, R = 500 Ω , and XC = 470 Ω . What is the reactive power?

Accepted Answer

A)  59.38 VARs 
B)  83.94 VARs 
C)  122.55 VARs 
D)  215.2 VARs 
A)  59.38 VARs 
B)  83.94 VARs 
C)  122.55 VARs 
D)  215.2 VARs

Question 16

In an RC parallel circuit, the voltage across the resistor and the voltage across the capacitor are _____.

Accepted Answer

A)  less than 90 ° out of phase with the resistor voltage lagging 
B)  in phase 
C)  less than 90 ° out of phase with the resistor voltage leading 
D)  180 ° out of phase 
A)  less than 90 ° out of phase with the resistor voltage lagging 
B)  in phase 
C)  less than 90 ° out of phase with the resistor voltage leading 
D)  180 ° out of phase

Question 17

In an RC parallel circuit, ET = 240 V, R = 1000 Ω , and XC = 1500 Ω . What is the apparent power?

Accepted Answer

A)  38.4 VA 
B)  57.6 VA 
C)  56 VA 
D)  69.23 VA 
A)  38.4 VA 
B)  57.6 VA 
C)  56 VA 
D)  69.23 VA

Question 18

In an RC parallel circuit, ET = 208 V, R = 42 k Ω , and XC = 47 k Ω . What is Z?

Accepted Answer

A)  19 k Ω 
B)  22.18 k Ω 
C)  23.03 k Ω 
D)  31.32 k Ω 
A)  19 k Ω 
B)  22.18 k Ω 
C)  23.03 k Ω 
D)  31.32 k Ω

Question 19

In an RC parallel circuit, ET = 277 V, R = 24 k Ω , and XC = 39 k Ω . What is the power factor?

Accepted Answer

A)  10% 
B)  61.54% 
C)  85.17% 
D)  92.41% 
A)  10% 
B)  61.54% 
C)  85.17% 
D)  92.41%

Question 20

In an RC parallel circuit, ET = 208 V, R = 68 k Ω , and XC = 56 k Ω . What is the phase angle (angle theta)?

Accepted Answer

A)  39.47 ° 
B)  40 ° 
C)  44.56 ° 
D)  50.53 ° 
A)  39.47 ° 
B)  40 ° 
C)  44.56 ° 
D)  50.53 °

Exam 23: Resistive-Capacitive Parallel Circuits

In an RC parallel circuit, ET = 240 V, R = 40 Ω , and XC = 30 Ω . What is IR?

In an RC parallel circuit, the amount of phase angle shift depends on the ratio of the amount of _____.

In an RC parallel circuit, ET = 240 V, R = 10 k Ω , and XC = 8.2 k Ω . What is IC?

In an RC parallel circuit, ET = 277 V, R = 82 k Ω , and XC = 33 k Ω . What is the apparent power?

In an RC parallel circuit, ET = 120 V, R = 3.6 k Ω , and XC = 5.6 k Ω . What is P?

In an RC parallel circuit, ET = 120 V, R = 420 Ω , and XC = 330 Ω . What is Z?

In an RC parallel circuit, ET = 120 V, R = 47 k Ω , and XC = 27 k Ω . What is IT?

In an RC parallel circuit, ET = 240 V, R = 30 Ω , and XC = 60 Ω . What is the phase angle (angle theta)?

In an RC parallel circuit, the supply voltage is 120 V, 60 Hz. The resistance is 40 Ω and the capacitive reactance is 30 Ω . What is the capacitance of the capacitor?

In an RC parallel circuit, ET = 120 V, R = 40 Ω , and XC = 30 Ω . What is the power factor?

In an RC parallel circuit, ET = 240 V, R = 4 k Ω , and XC = 3.3 k Ω . What is IR?

In an RC parallel circuit, ET = 120 V, R = 300 Ω , and XC = 400 Ω . What is P?

In an RC parallel circuit, ET = 240 V, R = 40 Ω , and XC = 30 Ω . What is IC?

In an RC parallel circuit, the current flow through the capacitor will lead both the resistive current and applied voltage by _____.

In an RC parallel circuit, ET = 240 V, R = 500 Ω , and XC = 470 Ω . What is the reactive power?

In an RC parallel circuit, the voltage across the resistor and the voltage across the capacitor are _____.

In an RC parallel circuit, ET = 240 V, R = 1000 Ω , and XC = 1500 Ω . What is the apparent power?

In an RC parallel circuit, ET = 208 V, R = 42 k Ω , and XC = 47 k Ω . What is Z?

In an RC parallel circuit, ET = 277 V, R = 24 k Ω , and XC = 39 k Ω . What is the power factor?

In an RC parallel circuit, ET = 208 V, R = 68 k Ω , and XC = 56 k Ω . What is the phase angle (angle theta)?

Atomic Structure

Electrical Quantities and Ohms Law

Static Electricity

Magnetism

Resistors

Series Circuits

Parallel Circuits

Combination Circuits

Kirchhoffs Law, Thevenins and Nortons Theorems

Measuring Instruments

Using Wire Tables and Determining Conductor Sizes

Conduction in Liquids and Gases

Batteries and Other Sources of Electricity

Magnetic Induction

Basic Trigonometry and Vectors

Alternating Current

Inductance in Alternating Current Circuits

Resistive-Inductive Series Circuits

Resistive-Inductive Parallel Circuits

Capacitors

Capacitance in Alternating Current Circuits

Resistive-Capacitive Series Circuits

Resistive-Inductive-Capacitive Series Circuits

Resistive-Inductive-Capacitive Parallel Circuits

Filters

Three-Phase Circuits

Single-Phase Transformers

Three-Phase Transformers

Direct Current Generators

Direct Current Motors

Three-Phase Alternators

Three-Phase Motors

Single-Phase Motors

Harmonics

Filters

In an RC parallel circuit, E_T = 240 V, R = 40 Ω , and X_C = 30 Ω . What is I_R?

In an RC parallel circuit, E_T = 240 V, R = 10 k Ω , and X_C = 8.2 k Ω . What is I_C?

In an RC parallel circuit, E_T = 277 V, R = 82 k Ω , and X_C = 33 k Ω . What is the apparent power?

In an RC parallel circuit, E_T = 120 V, R = 3.6 k Ω , and X_C = 5.6 k Ω . What is P?

In an RC parallel circuit, E_T = 120 V, R = 420 Ω , and X_C = 330 Ω . What is Z?

In an RC parallel circuit, E_T = 120 V, R = 47 k Ω , and X_C = 27 k Ω . What is I_T?

In an RC parallel circuit, E_T = 240 V, R = 30 Ω , and X_C = 60 Ω . What is the phase angle (angle theta)?

In an RC parallel circuit, E_T = 120 V, R = 40 Ω , and X_C = 30 Ω . What is the power factor?

In an RC parallel circuit, E_T = 240 V, R = 4 k Ω , and X_C = 3.3 k Ω . What is I_R?

In an RC parallel circuit, E_T = 120 V, R = 300 Ω , and X_C = 400 Ω . What is P?

In an RC parallel circuit, E_T = 240 V, R = 40 Ω , and X_C = 30 Ω . What is I_C?

In an RC parallel circuit, E_T = 240 V, R = 500 Ω , and X_C = 470 Ω . What is the reactive power?

In an RC parallel circuit, E_T = 240 V, R = 1000 Ω , and X_C = 1500 Ω . What is the apparent power?

In an RC parallel circuit, E_T = 208 V, R = 42 k Ω , and X_C = 47 k Ω . What is Z?

In an RC parallel circuit, E_T = 277 V, R = 24 k Ω , and X_C = 39 k Ω . What is the power factor?

In an RC parallel circuit, E_T = 208 V, R = 68 k Ω , and X_C = 56 k Ω . What is the phase angle (angle theta)?