ECE

Question 1

What is electron flow?

Answer 1

Negative to positive and has five electron

Question 2

Conventional flow

Answer 2

positive to negative and hole, moving in the same direction as the positive charge flow

Question 3

P-type material

Answer 3

majority carriers is holes

Question 4

N-type materials

Answer 4

majority carriers are electrons

Question 5

types of semiconductor

Answer 5

Silicom, Gallium Arsenide (GaAs), Germanium

Question 6

What is doping

Answer 6

introducing impurity to intrinsic

Question 7

What is intrinsic

Answer 7

Pure materials

Question 8

are doped with impurities to increase conductivity

Answer 8

Extrinsic

Question 9

Atoms with valency 5; such as Arsenic (As), Phosphorous (Pi), Antimony (Sb), etc.

Answer 9

Pentavalent atoms

Question 10

trivalent atoms

Answer 10

Atoms with valency of 3

Question 11

P

Answer 11

anode

Question 12

N

Answer 12

cathode

Question 13

flow of charges decreases

Answer 13

depletion region

Question 14

threshold voltage at which imitation of breakdown

Answer 14

breakdown voltage

Question 15

conduction band

Answer 15

delocalize band of energy

Question 16

least abandoned condition of the conduction band

Answer 16

bandgap or energy gap

Question 17

always filled with electrons, formed by a series of energy

Answer 17

valence band

Question 18

The peak inverse voltage rating of the diode

Answer 18

half-wave rectifier

Question 19

types of full-wave rectifier

Answer 19

center tapped rectifier and bridge rectifier

Question 20

allows unidirectional (oneway)

Answer 20

Full-wave rectifier

Question 21

Eliminates fluctuations

Answer 21

filter

Question 22

ripple

Answer 22

small amount of fluctuation

Question 23

variation in capacitor voltage

Answer 23

ripple voltage

Question 24

Ripple factor

Answer 24

can be lowered by increasing the value of the filter

Question 25

connected to the output of a filtered rectifier

Answer 25

voltage regulator

Question 26

how much changes occurs in the output voltage for the given change

Answer 26

line regulation

Question 27

how much changes occurs in the output voltage over a certain range

Answer 27

load regulation

Question 28

are networks that employ diodes to clip away a portion of an input signal

Answer 28

clippers

Question 29

network constructed of a diode

Answer 29

clamper

Question 30

special type of semiconductor that convert light to electrical energy or vice versa

Answer 30

optoelectronics devices

Question 31

LED

Answer 31

two lead semiconductor device has polarity

Question 32

electroluminescence

Answer 32

the process by which electrons and electron holes recombine in a semiconductor, producing light

Question 33

a regulator/ device that is designed for operation in the reverse breakdown region

Answer 33

Zener diode

Question 34

applying high voltage and increasing the free electrons in semiconductors and insulating materials.

Answer 34

Avalanche breakdown

Question 35

Electrons move across the barrier from the valence band of p type

Answer 35

Zener breakdown

Question 36

Generate electromagnetic energy

Answer 36

Light Emitting diodes

Question 37

transform electromagnetic energy

Answer 37

light detecting devices

Question 38

Photoresistors

Answer 38

Light sensitive variable resistors

Question 39

Photodiode

Answer 39

2 lead semiconductor that transform light to electric energy

Question 40

A three lead semiconductor device that
acts as:
o an electrically controlled switch, or
o a current amplifier.
is analogous to a faucet.

Answer 40

Transistor

Question 41

BJT (NPN AND PNP)

Answer 41

BIPOLAR JUNCTION TRANSISTOR (NPN AND PNP)

Question 42

JFET (N-CHANNEL AND P-CHANNEL)

Answer 42

JUNCTION FIELD EFFECT TRANSISTOR (N-CHANNEL AND P-CHANNEL)

Question 43

MOSFET
Depletion type (n- and p-channel) and
enhancement type (n- and p-channel)

Answer 43

METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR

Question 44

has Voltage Gain but no Current Gain

Answer 44

Common Base Configuration

Question 45

CURRENT CONTROL DEVICE

Answer 45

BJT

Question 45

Common Collector Configuration

Answer 45

has Current Gain but no Voltage Gain

Question 45

a type of transistor that uses an electric
field to control the flow of current in a
semiconductor

Answer 45

FIELD EFFECT TRANSISTOR

Question 46

has both Current and Voltage Gain

Answer 46

Common Emitter Configuration

Question 46

commonly
known as MOSFET

Answer 46

Metal-insulator Field Effect Transistor (MISFET)

Question 47

VOLTAGE CONTROLLED DEVICE

Answer 47

FET

Question 48

(MESFET)

Answer 48

Metal-semiconductor Field Effect Transistor

Question 49

What are the two types of BJT

Answer 49

npn pnp

Question 49

IGFET

Answer 49

Insulated Gate Field Effect Transistor

Question 50

What applications does the BJT serve?

Answer 50

SWITCHING, AMPLIFICATION

Question 51

The three terminals of a bipolar junction transistor are called

Answer 51

COLLECTOR, BASE, EMITTER

Question 52

In transistors, what does 𝛽 represent

Answer 52

CURRENT GAIN OR AMPLIFICATION FACTOR

Question 53

A type of transistor that uses an electric field to control the flow of current in a semiconductor.

Answer 53

FIELD EFFECT TRANSISTOR

Question 54

Give the types of FET

Answer 54

METAL OXIDE SEMICONDUCTOR FET
METAL-SEMICONDUCTOR FET
Metal-insulator Field Effect Transistor

Question 55

The three terminals of a field effect transistor are called

Answer 55

SOURCE, GATE DRAIN