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PN Junction Diode – 1 – 8

36. Boltzmann diode equation relates :

(a) Voltage and temperature characteristics of a junction
(b) Voltage and current characteristics of a junction
(c) Current and temperature characteristics of a junction
(d) Resistance and temperature characteristics of a junction

ANSWER

EXPLANATION

37. The reverse current in a diode is of the order of …………

(a) kA
(b) mA
(c) microA
(d) A

ANSWER

EXPLANATION

38. The forward voltage drop across a silicon diode is about ………….

(a) 2.5 V
(b) 3 V
(c) 10 V
(d) 0.7 V

ANSWER

EXPLANATION

39. The width of the depletion layer in a P-N junction diode :

(a) Increases when a forward bias is applied
(b) Decreases when a reverse bias is applied
(c) Remain the same, irrespective of the bias
(d) none of these

ANSWER

EXPLANATION

40. Depletion region in a diode is –

(a) Positivity charged
(b) Negatively charged
(c) Completely neutral and has no charge
(d) A charged region of positive and negative ions at the junction

ANSWER

EXPLANATION

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