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Electrical Engineering
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Circuit Theorems in AC Analysis
See What Others Are Saying!
Question
In applying the superposition theorem,
Options
A. the sources are considered one at a time with all others replaced by their internal impedance
B. all sources are considered independently
C. all sources are considered simultaneously
D. the sources are considered one at a time with all others replaced by their internal resistance
Correct Answer
the sources are considered one at a time with all others replaced by their internal impedance
More questions
1. The term
squirrel-cage
applies to a type of three-phase ac generator.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
2. An alternator is an electromechanical ac generator.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
3. All coil cores are made of iron.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
4. The output voltage is 63.3% of its maximum at the critical frequencies.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
5. The flat portions of a pulse waveform contain low-frequency components.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
6. In an
RC
differentiating circuit, the output voltage is taken across the resistor.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
7. A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is
Options
A. 0.2
B. 0.4
C. 5
D. 25
Show Answer
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Discuss
Correct Answer: 5
8. The rising and falling edges of a pulse waveform contain the higher frequency component.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
9. A steady-state condition is reached when
Options
A. the output voltage reaches the average value of the input voltage
B. the output voltage reaches the input voltage
C. the output voltage reaches approximately 63% of the input voltage
D. the output voltage reaches the effective value of the input voltage
Show Answer
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Discuss
Correct Answer: the output voltage reaches the average value of the input voltage
10. When a 15 V input pulse with a width equal to two time constants is applied to an
RC
integrator, the capacitor charges to
Options
A. 15 V
B. 12.9 V
C. 8.6 V
D. 19.45 V
Show Answer
Scratch Pad
Discuss
Correct Answer: 12.9 V
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More in Electrical Engineering:
Alternating Current and Voltage
Branch, Loop and Node Analyses
Capacitors
Circuit Theorems and Conversions
Circuit Theorems in AC Analysis
Energy and Power
Inductors
Magnetism and Electromagnetism
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
Transformers
Voltage, Current and Resistance