Semiconductor

Question 1

Demorgan’s rule

Answer 1

Question 2

NOT gate symbol

Answer 2

Question 3

NOT gate truth table

Answer 3

Question 4

OR gate symbol

Answer 4

Question 5

OR gate truth table

Answer 5

Question 6

AND Gate symbol

Answer 6

Question 7

AND gate truth table

Answer 7

Question 8

NAND gate symbol

Answer 8

Question 9

NAND gate truth table

Answer 9

Question 10

NOR gate symbol

Answer 10

Question 11

NOR gate truth table

Answer 11

Question 12

NOT gate formed by NAND gates

Answer 12

Question 13

OR Gate formed by NAND gate

Answer 13

Question 14

AND Gate formed by NAND gate

Answer 14

Question 15

XOR Gate symbol

Answer 15

Question 16

XOR Gate Truth table

Answer 16

Question 17

Circuit diagram for OR gate

Answer 17

Question 18

Circuit diagram for AND Gate

Answer 18

Question 19

Circuit Diagram for NOR gate

Answer 19

Question 20

doping comparison of base/collector/emitter

and whats it’s size

Answer 20

Question 21

where is the arrow in a transistor (p to n or n to p)

Answer 21

Question 22

What’s forward biased and what’s reverse biased in a transistor!?

Answer 22

emitter side is forward biased

collector side is reverse biased

Question 23

base current ampllificnation factor formula(beta)

Answer 23

Question 24

emitter current amplification factor?! (alpha)

Answer 24

Question 25

alpha-beta relation

Answer 25

Question 26

which is almost 1 in magnitude and which is in large magnitude?!
beta alpha!?

Answer 26

alpha is almost one and beta is large

Question 27

draw the common-emitter circuit diagram with labeling

Answer 27

Question 28

output voltage formula

Answer 28

Question 29

input voltage formula

Answer 29

Question 30

output resistance formula

Answer 30

Question 31

whats zero at saturation current

Answer 31

Question 32

input resitanfce formula

Answer 32

Question 33

input characteristic curve graph

Answer 33

Question 34

output characteristic curve graph

Answer 34

Question 35

which property of common emitter circuits is used in amplifiers

Answer 35

a slight change in the input can result in a massive change in output which property is used in amplifiers in common emitter circuits

Question 36

by how much phase does the common emitter amplifier change the output voltage

Answer 36

180

Question 37

voltage gain formula

Answer 37

Question 38

power gain formula

Answer 38

Question 39

why does zener breakdown occurs

Answer 39

it occurs due to the breaking of covalent bonds in the depletion layer and increase in the number of electrons resulting in the sudden increase in the current in the circuit

Question 40

in which biasing does zener breakdown occurs?

Answer 40

in reverse biased

Question 41

what is the graph of zener breakdown

Answer 41

Question 42

what happens if in a zener diode circuit the current across resistance of zener is much more than the total curretn

Answer 42

the diode isnt in zener breakdown and hence the current though zener diode is 0