NCATT AET EXAM LATEST 2026 UPDATED QUESTIONS AND
VERIFIED 100% SOLUTIONS (2026/2027) |A+ GRADED
|GUARANTEED PASS
A semiconductor is - Answers -a device that only conducts electricity part of the time
What makes a semiconductor possible - Answers -the type of materials and how those materials
are constructed
Most semiconductors are constructed of either - Answers -germanium or silicon or some similar
crystalline type material
Semiconductor materials are produced by - Answers -growing them in round tubes that are
etched and doped with impurities to give them their semiconducting properties
Pure silicon or germanium by themselves are - Answers -not particularly good conductors and in
their pure state are insulators
Semicondcuter material is pure to what specification - Answers -1 part in 10 billion and may
have impurities added at approximately 1 part per 10 million to increase the number of carriers
Doping - Answers -the addition of the desired impurity to a semiconductor
1|Page
,Doping increases - Answers -the conductivity of a semiconductor so that it is more comparable
to a metal than an insulator
Electron donors are also known as - Answers -N-type dopants
N type dopants includes elements such as - Answers -nitrogen, phosphorus, arsenic, and
antimony
Nitrogen and phosphorus are N type dopans for - Answers -diamond
Phosphorus, arsenic, and antimony are used with - Answers -silicon
N type donor impurity creates - Answers -free electrons
P type acceptor impurity creates a - Answers -hole, a positive charge carrier
Intrinsic semiconductor materials are - Answers -poor conductors
2|Page
,Control of exactly when current is allowed to flow - Answers -the major difference between free
electrons in a transistor and current
P type seminconductors are doped with a trivalent impurity and have - Answers -an abundance
of free holes
Junction - Answers -when P and N materials are bonded together
N type material from the - Answers -cathode with free electons
P type material form the - Answers -Annode with holes
Applying a voltage to the N type material does what - Answers -excites the free electrons that
quickly fill the holes in the P type material
Forward bias - Answers -when current is flowing through a transistor
When a diode is considered a variable resistance device - Answers -when the forward bias is low
then the resistance of the diode is high
3|Page
, When the current is flowing in the forward bias direction then the - Answers -effective
resistance is near zero
If you apply an electrical voltage to the P type material - Answers -voltage will not be able to
flow
P type material has only holes and cannot - Answers -move free electrons
Reverse bias - Answers -when P type material has voltage applied and no voltage can flow
simple triangle with a straight line - Answers -electronic symbol for a diode
Symbols orientation is important to - Answers -determine the flow of current
Rectifying diode is a simple symbol is - Answers -triangle shape against a flat line
rectifying property - Answers -directionality of current flow most diodes exhibit
Unidirectional device - Answers -the diode
4|Page
VERIFIED 100% SOLUTIONS (2026/2027) |A+ GRADED
|GUARANTEED PASS
A semiconductor is - Answers -a device that only conducts electricity part of the time
What makes a semiconductor possible - Answers -the type of materials and how those materials
are constructed
Most semiconductors are constructed of either - Answers -germanium or silicon or some similar
crystalline type material
Semiconductor materials are produced by - Answers -growing them in round tubes that are
etched and doped with impurities to give them their semiconducting properties
Pure silicon or germanium by themselves are - Answers -not particularly good conductors and in
their pure state are insulators
Semicondcuter material is pure to what specification - Answers -1 part in 10 billion and may
have impurities added at approximately 1 part per 10 million to increase the number of carriers
Doping - Answers -the addition of the desired impurity to a semiconductor
1|Page
,Doping increases - Answers -the conductivity of a semiconductor so that it is more comparable
to a metal than an insulator
Electron donors are also known as - Answers -N-type dopants
N type dopants includes elements such as - Answers -nitrogen, phosphorus, arsenic, and
antimony
Nitrogen and phosphorus are N type dopans for - Answers -diamond
Phosphorus, arsenic, and antimony are used with - Answers -silicon
N type donor impurity creates - Answers -free electrons
P type acceptor impurity creates a - Answers -hole, a positive charge carrier
Intrinsic semiconductor materials are - Answers -poor conductors
2|Page
,Control of exactly when current is allowed to flow - Answers -the major difference between free
electrons in a transistor and current
P type seminconductors are doped with a trivalent impurity and have - Answers -an abundance
of free holes
Junction - Answers -when P and N materials are bonded together
N type material from the - Answers -cathode with free electons
P type material form the - Answers -Annode with holes
Applying a voltage to the N type material does what - Answers -excites the free electrons that
quickly fill the holes in the P type material
Forward bias - Answers -when current is flowing through a transistor
When a diode is considered a variable resistance device - Answers -when the forward bias is low
then the resistance of the diode is high
3|Page
, When the current is flowing in the forward bias direction then the - Answers -effective
resistance is near zero
If you apply an electrical voltage to the P type material - Answers -voltage will not be able to
flow
P type material has only holes and cannot - Answers -move free electrons
Reverse bias - Answers -when P type material has voltage applied and no voltage can flow
simple triangle with a straight line - Answers -electronic symbol for a diode
Symbols orientation is important to - Answers -determine the flow of current
Rectifying diode is a simple symbol is - Answers -triangle shape against a flat line
rectifying property - Answers -directionality of current flow most diodes exhibit
Unidirectional device - Answers -the diode
4|Page
