Question 1

In a parallel circuit, ET = 240 V, R = 5.6 k Ω , and XL = 3.6 k Ω . What is P?

Accepted Answer

A)  6.26 W 
B)  8.65 W 
C)  9 W 
D)  10.28 W 
A)  6.26 W 
B)  8.65 W 
C)  9 W 
D)  10.28 W D

Question 2

In a parallel circuit, ET = 120 V, R = 1500 Ω , and XL = 1000 Ω . What is the apparent power?

Accepted Answer

A)  17.31 VA 
B)  24 VA 
C)  29.6 VA 
D)  34.40 VA 
A)  17.31 VA 
B)  24 VA 
C)  29.6 VA 
D)  34.40 VA A

Question 3

In a parallel circuit, the voltage across the resistor and the voltage across the inductor are _____.

Accepted Answer

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

Question 4

In a parallel circuit, ET = 240 V, R = 47 k Ω , and XL = 50 k Ω . What is the reactive power?

Accepted Answer

A)  0.54 VARs 
B)  0.89 VARs 
C)  1.15 VARs 
D)  1.23 VARs 
A)  0.54 VARs 
B)  0.89 VARs 
C)  1.15 VARs 
D)  1.23 VARs

Question 5

In a parallel circuit, ET = 120 V, R = 3.3 k Ω , and XL = 4 k Ω . What is IR?

Accepted Answer

A)  16.44 mA 
B)  23.14 mA 
C)  30 mA 
D)  36.36 mA 
A)  16.44 mA 
B)  23.14 mA 
C)  30 mA 
D)  36.36 mA

Question 6

In a parallel circuit, ET = 277 V, R = 56 k Ω , and XL = 68 k Ω . What is the phase angle (angle theta)?

Accepted Answer

A)  34.56 ° 
B)  39.47 ° 
C)  50.53 ° 
D)  90 ° 
A)  34.56 ° 
B)  39.47 ° 
C)  50.53 ° 
D)  90 °

Question 7

In a parallel circuit, ET = 240 V, R = 400 Ω , and XL = 300 Ω . What is P?

Accepted Answer

A)  82.29 W 
B)  115.2 W 
C)  122 W 
D)  144 W 
A)  82.29 W 
B)  115.2 W 
C)  122 W 
D)  144 W

Question 8

In a parallel circuit, the current flow through the inductor will be _____.

Accepted Answer

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

Question 9

In a parallel circuit, ET = 208 V, R = 39 k Ω , and XL = 24 k Ω . What is the power factor?

Accepted Answer

A)  31.61% 
B)  52.4% 
C)  85% 
D)  95% 
A)  31.61% 
B)  52.4% 
C)  85% 
D)  95%

Question 10

In a parallel circuit, the supply voltage is 120 V, 60 Hz. The resistance is 30 Ω and the inductive reactance is 40 Ω . What is the value of the inductor?

Accepted Answer

A)  0.106 H 
B)  0.196 H 
C)  0.233 H 
D)  0.363 H 
A)  0.106 H 
B)  0.196 H 
C)  0.233 H 
D)  0.363 H

Question 11

In a parallel circuit, ET = 240 V, R = 30 Ω , and XL = 40 Ω . What is the power factor?

Accepted Answer

A)  33% 
B)  75% 
C)  80% 
D)  90% 
A)  33% 
B)  75% 
C)  80% 
D)  90%

Question 12

In a parallel circuit, ET = 120 V, R = 8.2 k Ω , and XL = 10 k Ω . What is IL?

Accepted Answer

A)  6.59 mA 
B)  9.28 mA 
C)  12 mA 
D)  14.63 mA 
A)  6.59 mA 
B)  9.28 mA 
C)  12 mA 
D)  14.63 mA

Question 13

In a parallel circuit, ET = 240 V, R = 330 Ω , and XL = 420 Ω . What is Z?

Accepted Answer

A)  120 Ω 
B)  170 Ω 
C)  259.62 Ω 
D)  534.13 Ω 
A)  120 Ω 
B)  170 Ω 
C)  259.62 Ω 
D)  534.13 Ω

Question 14

In a parallel circuit, ET = 120 V, R = 30 Ω , and XL = 60 Ω . What is the phase angle (angle theta)?

Accepted Answer

A)  13.49 ° 
B)  26.51 ° 
A)  13.49 ° 
B)  26.51 °

Question 15

In a parallel circuit, ET = 208 V, R = 33 k Ω , and XL = 82 k Ω . What is the apparent power?

Accepted Answer

A)  0.14 VA 
B)  0.31 VA 
C)  1.22 VA 
D)  1.41 VA 
A)  0.14 VA 
B)  0.31 VA 
C)  1.22 VA 
D)  1.41 VA

Question 16

In a parallel circuit, ET = 120 V, R = 470 Ω , and XL = 500 Ω . What is the reactive power?

Accepted Answer

A)  20.98 VARs 
B)  28.8 VARs 
C)  34.85 VARs 
D)  39.64 VARs 
A)  20.98 VARs 
B)  28.8 VARs 
C)  34.85 VARs 
D)  39.64 VARs

Question 17

In a parallel circuit, ET = 277 V, R = 33 k Ω , and XL = 42 k Ω . What is Z?

Accepted Answer

A)  13.41 k Ω 
B)  22.48 k Ω 
C)  25.95 k Ω 
D)  38.48 k Ω 
A)  13.41 k Ω 
B)  22.48 k Ω 
C)  25.95 k Ω 
D)  38.48 k Ω

Question 18

In a parallel circuit, ET = 240 V, R = 30 Ω , and XL = 40 Ω . What is IT?

Accepted Answer

A)  3.43 A 
B)  6 A 
C)  8.43 A 
D)  10 A 
A)  3.43 A 
B)  6 A 
C)  8.43 A 
D)  10 A

Question 19

In a parallel circuit, ET = 120 V, R = 30 Ω , and XL = 40 Ω . What is IR?

Accepted Answer

A)  1.71 A 
B)  2.4 A 
C)  3 A 
D)  4 A 
A)  1.71 A 
B)  2.4 A 
C)  3 A 
D)  4 A

Question 20

In a parallel circuit, ET = 120 V, R = 30 Ω , and XL = 40 Ω . What is IL?

Accepted Answer

A)  1.71 A 
B)  2.4 A 
C)  3 A 
D)  4 A 
A)  1.71 A 
B)  2.4 A 
C)  3 A 
D)  4 A

Exam 19: Resistive-Inductive Parallel Circuits

In a parallel circuit, ET = 240 V, R = 5.6 k Ω , and XL = 3.6 k Ω . What is P?

In a parallel circuit, ET = 120 V, R = 1500 Ω , and XL = 1000 Ω . What is the apparent power?

In a parallel circuit, the voltage across the resistor and the voltage across the inductor are _____.

In a parallel circuit, ET = 240 V, R = 47 k Ω , and XL = 50 k Ω . What is the reactive power?

In a parallel circuit, ET = 120 V, R = 3.3 k Ω , and XL = 4 k Ω . What is IR?

In a parallel circuit, ET = 277 V, R = 56 k Ω , and XL = 68 k Ω . What is the phase angle (angle theta)?

In a parallel circuit, ET = 240 V, R = 400 Ω , and XL = 300 Ω . What is P?

In a parallel circuit, the current flow through the inductor will be _____.

In a parallel circuit, ET = 208 V, R = 39 k Ω , and XL = 24 k Ω . What is the power factor?

In a parallel circuit, the supply voltage is 120 V, 60 Hz. The resistance is 30 Ω and the inductive reactance is 40 Ω . What is the value of the inductor?

In a parallel circuit, ET = 240 V, R = 30 Ω , and XL = 40 Ω . What is the power factor?

In a parallel circuit, ET = 120 V, R = 8.2 k Ω , and XL = 10 k Ω . What is IL?

In a parallel circuit, ET = 240 V, R = 330 Ω , and XL = 420 Ω . What is Z?

In a parallel circuit, ET = 120 V, R = 30 Ω , and XL = 60 Ω . What is the phase angle (angle theta)?

In a parallel circuit, ET = 208 V, R = 33 k Ω , and XL = 82 k Ω . What is the apparent power?

In a parallel circuit, ET = 120 V, R = 470 Ω , and XL = 500 Ω . What is the reactive power?

In a parallel circuit, ET = 277 V, R = 33 k Ω , and XL = 42 k Ω . What is Z?

In a parallel circuit, ET = 240 V, R = 30 Ω , and XL = 40 Ω . What is IT?

In a parallel circuit, ET = 120 V, R = 30 Ω , and XL = 40 Ω . What is IR?

In a parallel circuit, ET = 120 V, R = 30 Ω , and XL = 40 Ω . What is IL?

Atomic Structure

Electrical Quantities and Ohms Law

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Kirchhoffs Law, Thevenins and Nortons Theorems

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In a parallel circuit, E_T = 240 V, R = 5.6 k Ω , and X_L = 3.6 k Ω . What is P?

In a parallel circuit, E_T = 120 V, R = 1500 Ω , and X_L = 1000 Ω . What is the apparent power?

In a parallel circuit, E_T = 240 V, R = 47 k Ω , and X_L = 50 k Ω . What is the reactive power?

In a parallel circuit, E_T = 120 V, R = 3.3 k Ω , and X_L = 4 k Ω . What is I_R?

In a parallel circuit, E_T = 277 V, R = 56 k Ω , and X_L = 68 k Ω . What is the phase angle (angle theta)?

In a parallel circuit, E_T = 240 V, R = 400 Ω , and X_L = 300 Ω . What is P?

In a parallel circuit, E_T = 208 V, R = 39 k Ω , and X_L = 24 k Ω . What is the power factor?

In a parallel circuit, E_T = 240 V, R = 30 Ω , and X_L = 40 Ω . What is the power factor?

In a parallel circuit, E_T = 120 V, R = 8.2 k Ω , and X_L = 10 k Ω . What is I_L?

In a parallel circuit, E_T = 240 V, R = 330 Ω , and X_L = 420 Ω . What is Z?

In a parallel circuit, E_T = 120 V, R = 30 Ω , and X_L = 60 Ω . What is the phase angle (angle theta)?

In a parallel circuit, E_T = 208 V, R = 33 k Ω , and X_L = 82 k Ω . What is the apparent power?

In a parallel circuit, E_T = 120 V, R = 470 Ω , and X_L = 500 Ω . What is the reactive power?

In a parallel circuit, E_T = 277 V, R = 33 k Ω , and X_L = 42 k Ω . What is Z?

In a parallel circuit, E_T = 240 V, R = 30 Ω , and X_L = 40 Ω . What is I_T?

In a parallel circuit, E_T = 120 V, R = 30 Ω , and X_L = 40 Ω . What is I_R?

In a parallel circuit, E_T = 120 V, R = 30 Ω , and X_L = 40 Ω . What is I_L?