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PN Junction Diode – 1 – 6

26. A PN junction is a/an :

(a) Oscillator
(b) Amplifier
(c) Insulator
(d) Rectifier

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

27. The volt-ampere relation for PN junction can be expressed as :

(a) I = IS[e^(V/n.Vt)] –1
(b) I = 1/IS[e^(V/n.Vt)] –1
(c) I = IS[e^(V/n.Vt)–1]
(d) I = IS[e^(V/n.Vt) +1]

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

28. In order to increase the recombination rate in silicon PN junction device ……… is diffused.

(a) Aluminum
(b) Silver
(c) Indium
(d) Gold

Answer
Answer : (d)

Explanation
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29. An ideal diode can be considered as an :

(a) Amplifier
(b) Bi-stable switch
(c) Oscillator
(d) Fuse

Answer
Answer : (b)

Explanation
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30. The dynamic resistance of diode is :

(a) Constant and independent of operating voltage
(b) Constant and dependent on operating voltage
(c) Not a constant and independent of operating voltage
(d) Not a constant and dependent on operating voltage

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

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