Basic Electronics (3110016) MCQs

MCQs of Diode theory and applications

Showing 51 to 60 out of 108 Questions
3 4 5 6 7 8
51.
When the crystal diode current is large, the bias is _______.
(a) Forward
(b) Inverse
(c) Poor
(d) Reverse
Answer:

Option (a)

52.
A crystal diode is a _______ device.
(a) Non-linear
(b) Bilateral
(c) Linear
(d) None of the above
Answer:

Option (a)

53.
A crystal diode utilities _______ characteristics for rectification.
(a) Reverse
(b) Forward
(c) Forward or reverse
(d) None of the above
Answer:

Option (b)

54.
When a crystal diode is used as a rectifier the most important consideration is ______.
(a) Forward characteristic
(b) Doping level
(c) Reverse characteristic
(d) PIV rating
Answer:

Option (d)

55.
If the doping level in a crystal diode is increased, the width of depletion layer _______.
(a) Remains the same
(b) Is decreased
(c) Is increased
(d) None of the above
Answer:

Option (b)

56.
A Zener diode has _______.
(a) One PN junction
(b) Two PN junctions
(c) Three PN junctions
(d) None of the above
Answer:

Option (a)

57.
________ Rectifier has the lowest forward resistance.
(a) Solid state
(b) Vacuum tube
(c) Gas tube
(d) None of the above
Answer:

Option (a)

58.
Mains AC power is connected into DC power for _______.
(a) Lighting purpose
(b) Heaters
(c) Using in electronic equipment
(d) None of the above
Answer:

Option (c)

59.
The disadvantage of a half-wave rectifier is that the ________.
(a) Components are expensive
(b) Diodes must have a higher power rating
(c) Output is difficult to filter
(d) None of the above
Answer:

Option (c)

60.
If the AC input to a half wave rectifier has an RMS value of 400/√2 volts, then diode PIV rating is ________.
(a) 400/√2 V
(b) 400 V
(c) 400×√2 V
(d) None of the above
Answer:

Option (b)

Showing 51 to 60 out of 108 Questions
3 4 5 6 7 8