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- Question
The basic unit of measurement for resistance is the:
Options- A. volt
- B. ampere
- C. ohm
- D. watt
- E. None of the above
- Correct Answer
- ohm
- 1. The peak value of a sine waveform is:
Options- A. the amplitude at 70.7% of the maximum value
- B. the amplitude at 90% of the maximum value
- C. the amplitude at 1.41 times the maximum value
- D. the maximum positive or negative value
- E. None of the above Discuss
- 2. What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W?
Options- A. 0 degree
- B. 26.6 degree
- C. 90 degree
- D. 180 degree
- E. None of the above Discuss
- 3. The dielectric constant of a material is a measure of:
Options- A. the amount of voltage it can withstand before breaking down
- B. how well the material concentrates electrostatic lines of force
- C. the amount of opposition to the current flow
- D. how well the material concentrates magnetic lines of force
- E. None of the above Discuss
- 4. The total inductance of a series inductor circuit is:
Options- A. equal to the sum of the individual inductance values
- B. equal to the sum of the individual inductive-reactance values
- C. less than the value of the smallest inductor
- D. equal to the source voltage divided by total current
- E. None of the above Discuss
- 5. Which one of the following statements most accurately describes the nature of inductive reactance?
Options- A. Inductive reactance is an opposition to current flow in dc circuits
- B. Inductive reactance is an opposition to current flow in ac circuits
- C. Inductive reactance is another term for counter emf
- D. Inductive reactance is a force that tends to overcome the effects of counter emf
- E. None of the above Discuss
- 6. If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage?
Options- A. 0 V
- B. 36 V
- C. 40 V
- D. 60 V
- E. None of the above Discuss
- 7. 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
- 8. 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
- 9. 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
- 10. 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
Electronic Principles problems
Search Results
Correct Answer: the maximum positive or negative value
Correct Answer: 26.6 degree
Correct Answer: how well the material concentrates electrostatic lines of force
Correct Answer: equal to the sum of the individual inductance values
Correct Answer: Inductive reactance is an opposition to current flow in ac circuits
Correct Answer: 60 V
Correct Answer: The flow of charged particles through a material
Correct Answer: Ammeter
Correct Answer: An electron has a negative charge and a proton has a positive charge
Correct Answer: Zero internal resistance
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