Semiconductor Devices Test

Result

Semiconductor Devices Test - 34

Score
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Weekly Quiz Competition

Question 1
4 / -1

A
12

B
6

C
24

D
48

Solution
Question 2
4 / -1

At 0 K temp, a N - type semi-conductor :

A
Does not have any charge carriers

B
Has few holes but no free electrons

C
Few holes and few electrons

D
Has equal number of holes and electrons
Question 3
4 / -1

In Si-crystal, impurity donor atom have valency.

A
2

B
3

C
4

D
5
Question 4
4 / -1

A N-P-N transistor conducts when collector is ___________ and emitter is __________with respect to base.

A
Positive, negative

B
Positive, positive

C
Negative, negative

D
Negative, positive
Question 5
4 / -1

A full wave rectifier is operating at 50Hz, 220V the fundamental frequency of ripple will be__________.

A
50 Hz

B
75 Hz

C
110 Hz

D
100 Hz
Question 6
4 / -1

Reverse bias applied on a junction diode :

A
Raises the potential barrier

B
Increases majority charge carrier current

C
Lowers the potential barrier

D
Increases the temperature of junction
Question 7
4 / -1

Digital circuits can be made to be respective use of :

A
AND gate

B
OR gate

C
NOT gate

D
NAND gate
Question 8
4 / -1

The output current versus time curve of a rectifier is shown in the figure. The average value of the output-current is __________ .

A
0

B

C

D
Question 9
4 / -1

For a transistor, in a common base configuration the alternating current gain α is given by :

A

B

C

D
Question 10
4 / -1

A

B

C

D