Electrical Engineering Mcqs
Question: A zener diode is destroyed if it______________?
- 1. is forward biased
- 2. is reverse biased
- 3. carrier more than rated current
- 4. none of the above
Question: The doping level in a zener diode is______________ that of a crystal diode?
- 1. the same as
- 2. less than
- 3. more than
- 4. none of the above
Question: When a crystal diode is used as a rectifier, the most important consideration is ____________?
- 1. forward characteristic
- 2. doping level
- 3. reverse characteristic
- 4. PIC rating
Question: A zener diode is always_______________ connected?
- 1. reverse
- 2. forward
- 3. either reverse or forward
- 4. none of the above
Question: A zener diode has ________________?
- 1. one pn junction
- 2. two pn junctions
- 3. three pn junctions
- 4. none of the above
Question: A crystal diode utilises …………….. characteristic for rectification.
- 1. reverse
- 2. forward
- 3. forward or reverse
- 4. none of the above
Question: A zener diode is used as ______________?
- 1. an amplifier
- 2. a voltage regulator
- 3. a rectifier
- 4. a multivibrator
Question: The knee voltage of a crystal diode is approximately equal to ________________?
- 1. applied voltage
- 2. breakdown voltage
- 3. forward voltage
- 4. barrier potential
Question: When the crystal current diode current is large, the bias is ______________?
- 1. forward
- 2. inverse
- 3. poor
- 4. reverse
Question: If the temperature of a crystal diode increases, then leakage current ______________?
- 1. remains the same
- 2. decreases
- 3. increases
- 4. becomes zero