PN Junction Diode – 1 – 1

1. The depletion region is one which has :

(a) Immobile charges
(b) Mobile charges
(c) Atoms
(d) Molecules

ANSWER

EXPLANATION

2. The knee voltage of a PN junction diode is approximately equal to the :

(a) Forward voltage
(b) Applied voltage
(c) Breakdown voltage
(d) Potential

ANSWER

EXPLANATION

3. Diffusion capacitance is a capacitance of a :

(a) reverse biased semiconductor diode junction caused by unequal doping
(b) reverse biased semiconductor diode junction caused by equal doping
(c) forward biased semiconductor diode junction caused by unequal doping
(d) forward biased semiconductor diode junction caused by equal doping

ANSWER

EXPLANATION

4. 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

EXPLANATION

5. The common method of making PN junction is known as :

(a) diffusing
(b) alloying
(c) doping
(d) biasing

ANSWER

EXPLANATION

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