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- Question
Faraday's law states that relative motion between a magnetic field and a coil induces a voltage across the coil.
Options- A. True
- B. False
- Correct Answer
- True
- 1. The branch current method is based on Kirchhoff's voltage law and Kirchhoff's current law.
Options- A. True
- B. False Discuss
- 2. The mesh method can be applied to circuits with any number of loops.
Options- A. True
- B. False Discuss
- 3. Third-order determinants are evaluated by the expansion method or by the cofactor method.
Options- A. True
- B. False Discuss
- 4. A loop current is an actual current in a branch.
Options- A. True
- B. False Discuss
- 5. When assigning branch currents, you need not be concerned with the direction you choose.
Options- A. True
- B. False Discuss
- 6. An induced voltage is produced as a result of a dc voltage.
Options- A. True
- B. False Discuss
- 7. Inductance is the property of an inductor that produces an opposition to any change in current.
Options- A. True
- B. False Discuss
- 8. XL is directly proportional to frequency and inductance.
Options- A. True
- B. False Discuss
- 9. 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
- 10. 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
Inductors problems
Search Results
Correct Answer: True
Correct Answer: True
Correct Answer: True
Correct Answer: False
Correct Answer: True
Correct Answer: False
Correct Answer: True
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: True
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