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- Question
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
- Correct Answer
- an insulator
- 1. 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 Discuss
- 2. 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 Discuss
- 3. 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 Discuss
- 4. Which one of the following statements most accurately reflects the nature of ac power?
Options- A. The current in an ac circuit flows in one direction, but changes value periodically
- B. The current in an ac circuit flows in one direction at a steady level
- C. The current in an ac circuit changes direction periodically
- D. The current in an ac circuit flows in two directions at the same time
- E. None of the above Discuss
- 5. Holes act like:
Options- A. Atoms
- B. Crystals
- C. Negative charges
- D. Positive charges
- E. None of the above Discuss
- 6. 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 Discuss
- 7. 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 Discuss
- 8. What kind of device is a diode?
Options- A. Bilateral
- B. Linear
- C. Nonlinear
- D. Unipolar
- E. None of the above Discuss
- 9. Who invented the first junction transistor?
Options- A. Smith
- B. Gomes
- C. Fisher
- D. Shockley
- E. None of the above Discuss
- 10. 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 Discuss
Electronic Principles problems
Search Results
Correct Answer: Current lags the voltage through an inductor
Correct Answer: base current
Correct Answer: the time required to complete one full cycle
Correct Answer: The current in an ac circuit changes direction periodically
Correct Answer: Positive charges
Correct Answer: Ideal current source and parallel resistor
Correct Answer: Current can flow in a capacitor circuit, but not through the dielectric material itself
Correct Answer: Nonlinear
Correct Answer: Shockley
Correct Answer: 692.2 Ohm
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