Discussion
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- Question
What is the inductive reactance of a 2-H coil operating at 60 Hz?
Options- A. 754 Ohm
- B. 30 Ohm
- C. 60 Ohm
- D. 120 Ohm
- E. None of the above
- Correct Answer
- 754 Ohm
- 1. Which one of the following phrases most accurately describes a purely capacitive circuit?
Options- A. Resistances provide the only opposition to current flow
- B. Capacitive reactance provides the only opposition to current flow
- C. The ac voltage leads the current by 90 degree
- D. Combinations of resistance and capacitive reactance provide any opposition to current flow
- E. None of the above Discuss
- 2. An ideal voltage source has
Options- A. Zero internal resistance
- B. Infinite internal resistance
- C. A load dependent voltage
- D. A load-dependent current
- E. None of the above Discuss
- 3. What is the difference between the kinds of charges for an electron and a proton?
Options- A. An electron has a positive charge and a proton has no charge
- B. An electron has a positive charge and a proton has a negative charge
- C. An electron has a negative charge and a proton has a positive charge
- D. An electron has a negative charge and a proton has no charge
- E. None of the above Discuss
- 4. Which one of the following is most likely used for measuring the rate of electron flow?
Options- A. Voltmeter
- B. Ammeter
- C. Wattmeter
- D. Ohmmeter
- E. None of the above Discuss
- 5. Current is
Options- A. The flow of charged particles through a material
- B. An imbalance of electrical charges
- C. The force that causes electrons to flow
- D. The number of free electrons in an atom
- E. None of the above Discuss
- 6. Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?
Options- A. P = IE
- B. P = E2/R
- C. P = I2R
- D. I = P/E
- E. None of the above Discuss
- 7. A device that converts light energy to electrical energy is called a:
Options- A. thermocouple
- B. solar cell
- C. photodiode
- D. photo transistor
- E. None of the above Discuss
- 8. What kind of battery is most likely included in a cordless electric knife?
Options- A. Zinc-carbon battery
- B. Mercury-cell battery
- C. Nicad battery
- D. Lead-acid battery
- E. None of the above Discuss
- 9. Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff?
Options- A. 20 Ohm
- B. 30 Ohm
- C. 10 Ohm
- D. 100 Ohm
- E. None of the above Discuss
- 10. A loadstone is:
Options- A. a natural magnet
- B. a temporary magnet
- C. an artificial magnet
- D. a paramagnetic alloy
- E. None of the above Discuss
Electronic Principles problems
Search Results
Correct Answer: Capacitive reactance provides the only opposition to current flow
Correct Answer: Zero internal resistance
Correct Answer: An electron has a negative charge and a proton has a positive charge
Correct Answer: Ammeter
Correct Answer: The flow of charged particles through a material
Correct Answer: P = IE
Correct Answer: solar cell
Correct Answer: Mercury-cell battery
Correct Answer: 20 Ohm
Correct Answer: a natural magnet
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