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Electrical Engineering
‣
Ohm's Law
See What Others Are Saying!
Question
If you wish to increase the amount of current in a resistor from 120 mA to 160 mA by changing the 24 V source, what should the new voltage setting be?
Options
A. 8 V
B. 320 V
C. 3.2 V
D. 32 V
Correct Answer
32 V
More questions
1. One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
2. A 75 Ω load uses 2 W of power. The output voltage of the power supply is approximately
Options
A. 120 V
B. 1.2 V
C. 12 V
D. 6 V
Show Answer
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Correct Answer: 12 V
3. A 2 kΩ resistor and a 0.002 µF capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is
Options
A. 84.5 mW
B. 845 mW
C. 13 mW
D. 130 mW
Show Answer
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Discuss
Correct Answer: 84.5 mW
4. Three 15 mH inductors are in series. The total inductance is
Options
A. 15 mH
B. 30 mH
C. 45 mH
D. 5 mH
Show Answer
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Discuss
Correct Answer: 45 mH
5. A parallel circuit acts as a current divider.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
6. A capacitor blocks ac but passes dc.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
7. Current is measured in
Options
A. watts
B. volts
C. henries
D. amperes
Show Answer
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Discuss
Correct Answer: amperes
8. The number of kilowatts in 135 milliwatts is
Options
A. 1.35 × 10
?4
kW
B. 135 × 10
?3
kW
C. 0.0135 kW
D. 0.00135 kW
Show Answer
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Discuss
Correct Answer: 1.35 × 10
?4
kW
9. When the current through a 12 kΩ resistor is 8 mA, the power is
Options
A. 7.68 mW
B. 768 mW
C. 7.68 W
D. 76.8 W
Show Answer
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Discuss
Correct Answer: 768 mW
10. In an
RL
circuit, part of the power is resistive and part is reactive.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
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Circuit Theorems and Conversions
Circuit Theorems in AC Analysis
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Inductors
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Ohm's Law
Parallel Circuits
Passive Filters
Quantities and Units
RC Circuits
RL Circuits
RLC Circuits and Resonance
Series Circuits
Series-Parallel Circuits
Three-Phase Systems in Power Applications
Time Response of Reactive Circuits
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Voltage, Current and Resistance