Discussion
Home ‣ Electronics ‣ Measurement, Conversion and Control See What Others Are Saying!
- Question
A thermistor's temperature characteristic is essentially _________.
Options- A. linear
- B. logarithmic
- C. nonlinear
- D. geometric
- Correct Answer
- logarithmic
- 1. When current flow tries to decrease in an inductor, the magnetic field _______________ and the voltage polarity across the inductor _______________.
Options- A. collapses, remains the same
- B. expands, reverses
- C. collapses, reverses
- D. expands, remains the same Discuss
- 2. The reflected load value that the source sees will always be larger than the load value itself.
Options- A. True
- B. False Discuss
- 3. A transducer's function is to:
Options- A. transmit electrical energy
- B. convert energy
- C. produce mechanical energy
- D. prevent current flow Discuss
- 4. An encoder circuit is designed to generate specific codes.
Options- A. True
- B. False Discuss
- 5. The impedance of a series circuit when R = 15 kΩ and XL = 10 kΩ is approximately equal to ________.
Options- A. 5 kΩ
- B. 6 kΩ
- C. 18 kΩ
- D. 25 kΩ Discuss
- 6. The periodic recharging of DRAM memory cells is called ___________.
Options- A. multiplexing
- B. bootstrapping
- C. refreshing
- D. flashing Discuss
- 7. When a load is connected to a voltage divider, the total resistance of the circuit will ________.
Options- A. increase
- B. decrease
- C. remain the same
- D. double Discuss
- 8. The flux density is ___ when the magnetic flux is 9 µWb and the cross-sectional area of the magnetic field is 5 × 10?3 m2.
Options- A. 1800 µT
- B. 555.56 T
- C. 9 µT
- D. 5 × 10?3 T Discuss
- 9. A secondary cell generates dc via chemical activity; a primary cell generates dc:
Options- A. electrically
- B. thermally
- C. optically
- D. chemically Discuss
- 10. If a bridge rectifier is used, it is not necessary to use a transformer.
Options- A. True
- B. False Discuss
More questions
Correct Answer: collapses, reverses
Correct Answer: False
Correct Answer: convert energy
Correct Answer: False
Correct Answer: 18 kΩ
Correct Answer: refreshing
Correct Answer: decrease
Correct Answer: 1800 µT
Correct Answer: chemically
Correct Answer: True
Comments
There are no comments.More in Electronics:
Programming
Copyright İCuriousTab. All rights reserved.