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- Question
What is the approximate time for a complete decay of 400 mA of inductor current, when R = 10 ohms and L = 20 H?
Options- A. 10 seconds
- B. 8 seconds
- C. 4 seconds
- D. 2 seconds
- Correct Answer
- 10 seconds
- 1. Logic gate circuits contain predictable gate functions that open their outputs.
Options- A. True
- B. False Discuss
- 2. A reverse biased diode will act as an open switch.
Options- A. True
- B. False Discuss
- 3. A transducer does not convert energy from one form to another.
Options- A. True
- B. False Discuss
- 4. What is the standard TTL noise margin?
Options- A. 5.0 V
- B. 0.2 V
- C. 0.8 V
- D. 0.4 V Discuss
- 5. The total resistance of a series circuit always depends on the highest value resistor in that circuit.
Options- A. True
- B. False Discuss
- 6. A transistor used in a digital circuit will have two operating states, which are cutoff and saturation.
Options- A. True
- B. False Discuss
- 7. What is the output voltage?
Options- A. 15 V
- B. 5 V
- C. ?5 V
- D. ?15 V Discuss
- 8. A transistor may be used as a switching device or as a:
Options- A. fixed resistor
- B. tuning device
- C. rectifier
- D. variable resistor Discuss
- 9. The total resistance of a series circuit is equal to the average of all the resistance values.
Options- A. True
- B. False Discuss
- 10. Ferromagnetic materials have pre-existing magnetic fields.
Options- A. True
- B. False Discuss
More questions
Correct Answer: False
Correct Answer: True
Correct Answer: False
Correct Answer: 0.4 V
Correct Answer: False
Correct Answer: True
Correct Answer: ?5 V
Correct Answer: variable resistor
Correct Answer: False
Correct Answer: False
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