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- Question
The coefficient of coupling between two coils is 0.45. The first coil has an inductance of 75 mH and the second coil has an inductance of 105 mH. What is the mutual inductance between the coils?
Options- A. 3.54 mH
- B. 7.88 mH
- C. 39.9 mH
- D. 189.3 mH
- Correct Answer
- 39.9 mH
- 1. An inductor will boost current flow.
Options- A. True
- B. False Discuss
- 2. ___ capacitors have the highest values of capacitance.
Options- A. Electrolytic
- B. Ceramic
- C. Plastic-film
- D. Mica Discuss
- 3. A series circuit provides only one path for current between two points.
Options- A. True
- B. False Discuss
- 4. What is the ratio of 13 to 47 expressed in percent?
Options- A. 2.76%
- B. 27.7%
- C. 3.60%
- D. 36.1% Discuss
- 5. What is the permeability of transformer iron?
Options- A. 50
- B. 450
- C. 1,500
- D. 5,500 Discuss
- 6. The voltages across all components in parallel are equal.
Options- A. True
- B. False Discuss
- 7. When a depletion region of a transistor is large the barrier voltage is also large.
Options- A. True
- B. False Discuss
- 8. 5400 TTL series logic chips are made to military specifications.
Options- A. True
- B. False Discuss
- 9. Shunting the ac component away from the load is the task of a:
Options- A. transformer
- B. filter
- C. regulator
- D. rectifier Discuss
- 10. The capacitor that produces an ac ground is called a(n)
Options- A. coupling capacitor
- B. dc open
- C. bypass capacitor
- D. ac open Discuss
More questions
Correct Answer: False
Correct Answer: Electrolytic
Correct Answer: True
Correct Answer: 27.7%
Correct Answer: 5,500
Correct Answer: True
Correct Answer: True
Correct Answer: True
Correct Answer: filter
Correct Answer: bypass capacitor
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