Discussion
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- Question
All coil cores are made of iron.
Options- A. True
- B. False
- Correct Answer
- False
- 1. The term choke is more commonly used in connection with an inductor used to block off high frequencies.
Options- A. True
- B. False Discuss
- 2. Energy is stored by an inductor in an electrostatic field.
Options- A. True
- B. False Discuss
- 3. Inductors add in parallel.
Options- A. True
- B. False Discuss
- 4. The permeability of a core material is an indication of the ability of the material to establish a magnetic field.
Options- A. True
- B. False Discuss
- 5. Inductance is indirectly proportional to the square of the number of turns, the permeability, and the cross-sectional area of the core.
Options- A. True
- B. False Discuss
- 6. Complex numbers can be added and subtracted but not multiplied or divided.
Options- A. True
- B. False Discuss
- 7. Positive numbers can be represented by points to the right of the origin on the horizontal axis of a graph.
Options- A. True
- B. False Discuss
- 8. A complex number represents a phasor quantity.
Options- A. True
- B. False Discuss
- 9. The impedance of a series RC circuit varies directly with frequency.
Options- A. True
- B. False Discuss
- 10. In a lag network, the output voltage lags the input voltage in phase.
Options- A. True
- B. False Discuss
Inductors problems
Search Results
Correct Answer: True
Correct Answer: False
Correct Answer: False
Correct Answer: True
Correct Answer: False
Explanation:
Some factors that affect the inductance of a coil include:
1. The inductance is proportional to the square of the number of turns;
2. The inductance increases directly as the permeability of the core material increases;
3. The inductance increases directly as the cross-sectional area increases; and
4. The inductance decreases as its length increases.
1. The inductance is proportional to the square of the number of turns;
2. The inductance increases directly as the permeability of the core material increases;
3. The inductance increases directly as the cross-sectional area increases; and
4. The inductance decreases as its length increases.
Correct Answer: False
Correct Answer: True
Correct Answer: True
Correct Answer: False
Correct Answer: True
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