Deck 23: Resistive-Capacitive Parallel Circuits
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Deck 23: Resistive-Capacitive Parallel Circuits
1
In an RC parallel circuit, ET = 208 V, R = 42 k Ω , and XC = 47 k Ω . What is Z?
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
D
2
In an RC parallel circuit, ET = 240 V, R = 4 k Ω , and XC = 3.3 k Ω . What is IR?
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
C
3
In an RC parallel circuit, ET = 120 V, R = 40 Ω , and XC = 30 Ω . What is IT?
A) 5 A
B) 6 A
C) 7 A
D) 8 A
A) 5 A
B) 6 A
C) 7 A
D) 8 A
A
4
In an RC parallel circuit, ET = 277 V, R = 82 k Ω , and XC = 33 k Ω . What is the apparent power?
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
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5
In an RC parallel circuit, ET = 240 V, R = 10 k Ω , and XC = 8.2 k Ω . What is IC?
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
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6
In an RC parallel circuit, ET = 240 V, R = 40 Ω , and XC = 30 Ω . What is IC?
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
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7
In an RC parallel circuit, ET = 240 V, R = 500 Ω , and XC = 470 Ω . What is the reactive power?
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
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8
In an RC parallel circuit, the amount of phase angle shift depends on the ratio of the amount of _____.
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
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9
In an RC parallel circuit, ET = 240 V, R = 1000 Ω , and XC = 1500 Ω . What is the apparent power?
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
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10
In an RC parallel circuit, ET = 240 V, R = 40 Ω , and XC = 30 Ω . What is IR?
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
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11
In an RC parallel circuit, ET = 120 V, R = 300 Ω , and XC = 400 Ω . What is P?
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
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12
In an RC parallel circuit, ET = 120 V, R = 3.6 k Ω , and XC = 5.6 k Ω . What is P?
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
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13
In an RC parallel circuit, ET = 277 V, R = 24 k Ω , and XC = 39 k Ω . What is the power factor?
A) 10%
B) 61.54%
C) 85.17%
D) 92.41%
A) 10%
B) 61.54%
C) 85.17%
D) 92.41%
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14
In an RC parallel circuit, ET = 480 V, R = 50 k Ω , and XC = 47 k Ω . What is the reactive power?
A) 4.90 VARs
B) 5.36 VARs
C) 6.38 VARs
D) 7.61 VARs
A) 4.90 VARs
B) 5.36 VARs
C) 6.38 VARs
D) 7.61 VARs
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15
In an RC parallel circuit, ET = 120 V, R = 420 Ω , and XC = 330 Ω . What is Z?
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
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16
In an RC parallel circuit, ET = 120 V, R = 40 Ω , and XC = 30 Ω . What is the power factor?
A) 60%
B) 80%
C) 100%
D) 133%
A) 60%
B) 80%
C) 100%
D) 133%
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17
In an RC parallel circuit, the current flow through the capacitor will lead both the resistive current and applied voltage by _____.
A) 60 °
B) 90 °
C) 180 °
D) 360 °
A) 60 °
B) 90 °
C) 180 °
D) 360 °
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18
In an RC parallel circuit, ET = 120 V, R = 47 k Ω , and XC = 27 k Ω . What is IT?
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
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19
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?
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
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20
In an RC parallel circuit, the voltage across the resistor and the voltage across the capacitor are _____.
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
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21
In an RC parallel circuit, ET = 208 V, R = 68 k Ω , and XC = 56 k Ω . What is the phase angle (angle theta)?
A) 39.47 °
B) 40 °
C) 44.56 °
D) 50.53 °
A) 39.47 °
B) 40 °
C) 44.56 °
D) 50.53 °
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22
In an RC parallel circuit, ET = 240 V, R = 30 Ω , and XC = 60 Ω . What is the phase angle (angle theta)?
A) 26.57 °
B) 30 °
C) 63.43 °
D) 90 °
A) 26.57 °
B) 30 °
C) 63.43 °
D) 90 °
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