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Electronic Principles
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Question
Which one of the following statements is true?
Options
A. Current flows in a capacitor circuit only while ions are permitted to flow through the dielectric material
B. Current flows in a capacitor circuit only while the charge on the plates is large enough to force the dielectric to conduct electrons
C. Current can flow in a capacitor circuit, but not through the dielectric material itself
D. Power returned to the circuit is always greater than the power absorbed
E. None of the above
Correct Answer
Current can flow in a capacitor circuit, but not through the dielectric material itself
Electronic Principles problems
Search Results
1. Norton's theorem replaces a complicated circuit facing a load by an
Options
A. Ideal voltage source and parallel resistor
B. Ideal current source and parallel resistor
C. Ideal voltage source and series resistor
D. Ideal current source and series resistor
E. None of the above
Show Answer
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Discuss
Correct Answer: Ideal current source and parallel resistor
2. At room temperature an intrinsic silicon crystal acts approximately like
Options
A. a battery
B. a conductor
C. an insulator
D. a piece of copper wire
E. None of the above
Show Answer
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Correct Answer: an insulator
3. Which one of the following statements regarding ac circuits is correct?
Options
A. Current and voltage are in phase through an inductor
B. Current leads the voltage through an inductor
C. Current lags the voltage through an inductor
D. All of the above
E. None of the above
Show Answer
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Discuss
Correct Answer: Current lags the voltage through an inductor
4. The current gain of a transistor is defined as the ratio of the collector current to the
Options
A. base current
B. emitter current
C. supply current
D. collector current
E. None of the above
Show Answer
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Discuss
Correct Answer: base current
5. The period of a waveform is:
Options
A. the time required to complete one full cycle
B. the number of cycles completed in one second
C. the time required for the voltage to rise from 10% to 90% of the peak amplitude
D. equal to 0.707 times the peak amplitude
E. None of the above
Show Answer
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Correct Answer: the time required to complete one full cycle
6. What kind of device is a diode?
Options
A. Bilateral
B. Linear
C. Nonlinear
D. Unipolar
E. None of the above
Show Answer
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Correct Answer: Nonlinear
7. Who invented the first junction transistor?
Options
A. Smith
B. Gomes
C. Fisher
D. Shockley
E. None of the above
Show Answer
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Discuss
Correct Answer: Shockley
8. What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W?
Options
A. 692.2 Ohm
B. 844.5 Ohm
C. 3890 Ohm
D. 1234 Ohm
E. None of the above
Show Answer
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Correct Answer: 692.2 Ohm
9. Which one of the following statements best applies to a series RLC circuit?
Options
A. The voltage waveform for each component always has the same amplitude and phase as the applied voltage
B. The current waveform for each component always has the same amplitude and phase as the applied current
C. All of the above
D. The sum of the current is always less than the applied current
E. None of the above
Show Answer
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Discuss
Correct Answer: The current waveform for each component always has the same amplitude and phase as the applied current
10. Reducing the amount of current through an inductor:
Options
A. reduces the value of inductance by one-half
B. multiplies the value of inductance by four
C. multiplies the value of inductance by two
D. has no effect on the inductance
E. None of the above
Show Answer
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Correct Answer: has no effect on the inductance
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