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unit-2 zener diode

Total questions: 11

Worksheet time: 6mins

Name
Class
Date
1.

Zener diode is constructed with following regions

a)

P+P^+ and NN

b)

PP and N+N^+

c)

P+ P^{+\ } and N+N^+

d)

PP and NN

2.

Zener diode is always operated in which of the following bias condition

a)

forward bias

b)

reverse bias

c)

open circuited

d)

unbiased

3.

Depletion region of heavily doped P-N junction diode will be in size of...

a)

large

b)

thin

c)

medium

d)

zero

4.

E-field in depletion region of Zener diode will be....

a)

medium

b)

high

c)

low

d)

infinity

5.

Avalanche breakdown mainely occurs due to a factor called....

a)

applied E-field

b)

collisions of charge carriers

c)

thermal energy

d)

equilibrium conditions

6.

Zener breakdown mainely occurs due to a factor called...

a)

collisions of charge carriers

b)

applied E-field

c)

equilibrium condition

d)

thermal energy

7.

compared to avalanche breakdown, Zener breakdown occurs at which of the following voltage ranges

a)

same voltage range

b)

higher voltage range

c)

lower voltage range

d)

occurs at Zero voltage

8.

compared to Zener breakdown, Avalanche breakdown occurs at which of the following voltage ranges

a)

occur at Zero voltage

b)

same voltage range

c)

higher voltage range

d)

low voltage range

9.

comment on below statement:

P-N diode can be reused after occurance of avalanche breakdown..

a)

false

b)

true

10.

comment on below statement:

Zener diode can be reused after occurance of zener breakdown..

a)

false

b)

true

11.

which of the following is application of zener diode ?

a)

Ampllification

b)

voltage regulation

c)

filter

d)

rectifier