Electrical Engineering Mcqs
Question: If the doping level of a crystal diode is increased, the breakdown voltage__________________?
- 1. remains the same
- 2. is increased
- 3. is decreased
- 4. none of the above
Question: The ratio of reverse resistance and forward resistance of a germanium crystal diode is about ______________?
- 1. 1 : 1
- 2. 100 : 1
- 3. 1000 : 1
- 4. 40,000 : 1
Question: A crystal diode has forward resistance of the order of ________________?
- 1. kΩ
- 2. Ω
- 3. MΩ
- 4. none of the above
Question: A crystal diode is used as______________?
- 1. an amplifier
- 2. a rectifier
- 3. an oscillator
- 4. a voltage regulator
Question: If the arrow of crystal diode symbol is positive w.r.t. bar, then diode is _____________biased?
- 1. forward
- 2. reverse
- 3. either forward or reverse
- 4. none of the above
Question: The d.c. resistance of a crystal diode is ______________ its a.c. resistance?
- 1. the same as
- 2. more than
- 3. less than
- 4. none of the above
Question: The forward voltage drop across a silicon diode is about _______________?
- 1. 2.5 V
- 2. 3 V
- 3. 10 V
- 4. 0.7 V
Question: A crystal diode has______________?
- 1. one pn junction
- 2. two pn junctions
- 3. three pn junctions
- 4. none of the above
Question: If the doping level in a crystal diode is increased, the width of depletion layer_____________?
- 1. remains the same
- 2. is decreased
- 3. in increased
- 4. none of the above
Question: A crystal diode is a ________________device?
- 1. non-linear
- 2. bilateral
- 3. linear
- 4. none of the above