Discussion
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- Question
Which one of the following kinds of materials has the highest permeability?
Options- A. A diamagnetic material
- B. A ferromagnetic material
- C. A paramagnetic material
- D. All of the above
- E. None of the above
- Correct Answer
- A ferromagnetic material
- 1. At cut off, the Q point is at
Options- A. upper end of the load line
- B. middle of the load line
- C. lower end of the load line
- D. infinity
- E. None of the above Discuss
- 2. The barrier potential accross each depletion layer is
Options- A. 0
- B. 0.8 V
- C. 0.7 V
- D. 20 V
- E. None of the above Discuss
- 3. A real voltage source has
Options- A. Zero internal resistance
- B. Infinite internal resistance
- C. A small internal resistance
- D. A large internal resistance
- E. None of the above Discuss
- 4. Inductive reactance is measured in units of:
Options- A. volts per second
- B. amperes per second
- C. Ohm
- D. henrys
- E. None of the above Discuss
- 5. What are the main parts of an atom?
Options- A. Protons only
- B. Electrons, protons, and ions
- C. Electrons, ions, and neutrons
- D. Electrons, protons, and neutrons
- E. None of the above Discuss
- 6. To get the Norton current, you have to
Options- A. Short the load resistor
- B. Open the load resistor
- C. Short the voltage source
- D. Open the voltage source
- E. None of the above Discuss
- 7. Which one of the following statements is true?
Options- A. Capacitive reactance is at a minimum for dc source voltages
- B. Capacitive reactance decreases as the operating frequency increases
- C. There is no meaningful relationship between capacitive reactance and operating frequency
- D. Capacitive reactance increases as the operating frequency increases
- E. None of the above Discuss
- 8. Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current?
Options- A. 0.3 A
- B. 0.2 A
- C. 0.4 A
- D. 0.6 A
- E. None of the above Discuss
- 9. How much current flows through a 60-W light bulb that is operating at 120 V?
Options- A. 0.5A
- B. 180 A
- C. 2 A
- D. 7200 A
- E. None of the above Discuss
- 10. Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit?
Options- A. Flux density
- B. Number of lines of force
- C. Magnetomotive force
- D. Reluctance
- E. None of the above Discuss
Electronic Principles problems
Search Results
Correct Answer: lower end of the load line
Correct Answer: 0.7 V
Correct Answer: A small internal resistance
Correct Answer: Ohm
Correct Answer: Electrons, protons, and neutrons
Correct Answer: Short the voltage source
Correct Answer: Capacitive reactance decreases as the operating frequency increases
Correct Answer: 0.2 A
Correct Answer: 0.5A
Correct Answer: Magnetomotive force
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