Electrical Engineering MCQs MCQs
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What is also known as photodiffusion effect?
- A. Dember effect
- B. Skin effect
- C. Destriau effect
- D. Night effect
- Correct Answer: Option A
The property or ability of a material to support charge flow or electron flow
- A. Resistance
- B. Conductance
- C. Resistivity
- D. Permeance
- Correct Answer: Option B
A lightly doped semiconductor has
- A. Low resistance
- B. High resistance
- C. No effect on a semiconductor
- D. More heat dissipated behaviors:
- Correct Answer: Option B
Gallium arsenide, aluminum arsenide and gallium phosphide are classified as
- A. Elementary semiconductor
- B. Secondary semiconductor
- C. Intrinsic material made by doping
- D. Insulators
- Correct Answer: Option B
A heavily doped semiconductor has
- A. High resistance
- B. No effect on the semiconductor characteristics
- C. More heat dissipation
- D. Low resistance
- Correct Answer: Option D
The time it takes to turn off a forward-biased diode is called the
- A. Forward recovery time
- B. Reverse recovery time
- C. Recombination
- D. Turn-off time
- Correct Answer: Option B
What factor is shown on a data sheet that tells how much you have to reduce the power of a device?
- A. Power factor
- B. Derating factor
- C. Reactive factor
- D. Reduction factor
- Correct Answer: Option B
A class ________ amplifier stage operates with a small forward bias of the transistor, so that some collector current flows at all times.
- A. A
- B. B
- C. AB
- D. C
- Correct Answer: Option C
A large signal amplifier which is biased so that current is non zero for less than one-half cycle.
- A. Class AB
- B. Class C
- C. Class A
- D. Class B
- Correct Answer: Option C
A large signal amplifier which is biased so that collector current flow continuously during the complete electrical cycle of the signal as well as when no signal is present
- A. Class A
- B. Class B
- C. Class AB
- D. Class C
- Correct Answer: Option A