Ch 14. Semiconductor Electronics : Materials, Devices And Simple Circuits

Question 1

The impurity element used for p-type semiconductor is

Answer 1

Boron

Question 2

Diode is used as

Answer 2

Rectifier

Question 3

—–>|is the symbol of

Answer 3

Diode

Question 4

Unit of amplification factor of transistor is

Answer 4

No unit

Question 5

Which one of the following logic gates is universal logic gate?

Answer 5

NAND

Question 6

The binary equivalent of 25 is

Answer 6

(11001)2 niche 2

Question 7

The temperature coefficient of a semiconductor is

Answer 7

Negative

Question 8

Donor impurity atom has valency

Answer 8

5

Question 9

A p-type semi conductor is

Answer 9

Positively charged

Question 10

Which of the following is correct?

Answer 10

A. (1100)₂ = (12)₁₀
B. (1001)₂ = (12)₁₀
C. (1111)₂ = (12)₁₀
D. (1011)₂ = (12)₁₀

Ans- (1100)₂ = (12)₁₀

Question 11

The decimal number of binary number (1001)₂ is

Question 12

A semi conductor is cooled from T₁K to T₂K then its resistance will

Question 13

If the current constant for a transistor are α and β then

Question 14

For n-type Germanium, impurity doped in Germanium is

Question 15

Diode is used as

Question 16

Boolean equation of NAND gate

Question 17

The majority current carrier in p-type semi conductor is

Question 18

Boolean expression for NOR gate is

Question 19

With the increase of temperature, the resistance of a semiconductor

Question 20

Write the decimal number 25 in binary

Question 21

The logic gate shown in figure is

A • ————
———–• Y
B • ————

Question 22

In n-p-n transistor the relation between emitter current i E base current (i B) and collector current (i c) is

Neeche E,B,C

Question 23

Main gate (basic gate) is

Question 24

Binary number of decimal number (8)₁₀ is

Question 25

Symbol of NAND gate is