Electronic Principles problems
- 1. 1 Microfarad is the same as:
Options- A. 1 millionth of a picofarad
- B. 1000 millifarads
- C. 1 million picofarads
- D. 1 million farads
- E. None of the above Discuss
Correct Answer: 1 million picofarads
- 2. Doubling the operating frequency of a purely inductive circuit:
Options- A. doubles the amount of current through the inductors
- B. has no effect on the current through the inductors
- C. cuts the current through the inductors one-half
- D. increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit
- E. None of the above Discuss
Correct Answer: cuts the current through the inductors one-half
- 3. Which one of the following statements is true for voltage in a parallel circuit?
Options- A. The total voltage in a parallel circuit is equal to the average value of the individual voltages
- B. The total voltage in a parallel circuit is always less than the value of the smallest voltage
- C. The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit
- D. The total voltage of a parallel circuit is the same as the voltages across each branch
- E. None of the above Discuss
Correct Answer: The total voltage of a parallel circuit is the same as the voltages across each branch
- 4. 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
Correct Answer: Electrons, protons, and neutrons
- 5. 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
Correct Answer: Ohm
- 6. 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
Correct Answer: A small internal resistance
- 7. 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
Correct Answer: 0.7 V
- 8. 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
Correct Answer: lower end of the load line
- 9. 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 Discuss
Correct Answer: A ferromagnetic material
- 10. 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
Correct Answer: Short the voltage source
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