Discussion
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- Question
What is the voltage drop across R1 in the given circuit?
Options- A. 10 V
- B. 4.80 V
- C. 4.00 V
- D. 5.80 V
- Correct Answer
- 5.80 V
- 1.
What value of input resistance is needed in the given circuit to produce the given output voltage?
Options- A. 50 Ω
- B. 4 kΩ
- C. 4.08 kΩ
- D. 5 kΩ Discuss
- 2. The Q point on a load line may be used to determine:
Options- A. VC
- B. VCC
- C. VB
- D. IC Discuss
- 3. Why is ac current transfer more effective than dc current transfer over long distances?
Options- A. due to the height of power lines
- B. due to the use of ac generators
- C. due to step-up and step-down transformers reducing I2R losses
- D. due to very high voltages Discuss
- 4. A(n) ________ amplifier is used if the application requires a high sensitivity to low-level signals and protection from high-voltage associated circuits.
Options- A. basic instrumentation
- B. operational transconductance
- C. log/antilog amplifier
- D. isolation Discuss
- 5. Integrated-injection logic offers high component density and is easier to fabricate than TTL.
Options- A. True
- B. False Discuss
- 6. One oscilloscope selector knob that allows the major and minor divisions of the graticule to be used to determine a signal amplitude value is called the:
Options- A. time/cm control
- B. position control
- C. intensity control
- D. volts/cm control Discuss
- 7. What is the name of a device used to directly measure the frequency of a periodic wave?
Options- A. oscilloscope
- B. frequency meter or counter
- C. audio frequency generator
- D. radio frequency generator Discuss
- 8. When matching polarity connections have been made and the potential difference (PD) is above 0.7 V, the diode is considered to be:
Options- A. not working
- B. forward biased
- C. reverse biased
- D. an open switch Discuss
- 9. What does Faraday's law concern?
Options- A. a magnetic field in a coil
- B. a magnetic field cutting a conductor
- C. a magnetic field hystersis
- D. a magnetic field in a conductor Discuss
- 10. In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the product of Av × B equals_______.
Options- A. reduced, one
- B. reduced, less than one
- C. increased, more than one
- D. increased, much greater than one Discuss
More questions
Correct Answer: 4 kΩ
Correct Answer: VB
Correct Answer: due to step-up and step-down transformers reducing I2R losses
Correct Answer: isolation
Correct Answer: True
Correct Answer: volts/cm control
Correct Answer: frequency meter or counter
Correct Answer: forward biased
Correct Answer: a magnetic field cutting a conductor
Correct Answer: reduced, one
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