WorksheetsSemiconductores
Total questions: 12
Worksheet time: 5mins
What is a semiconductor?
A material with highly insulating properties and low conductive properties
A material which its properties are highly conductive
A material with highly insulating properties
A material which its electrical properties are between highly conductive materials and insulators
Who was the first scientist to mention the word semiconductor?
Ampère
Voltaire
Volt
Volta
F. Braun discovered that electrical conductivity increases with temperature in
Copper sulfide
Gallium arsenide
Silver sulfide
All are wrong
It was the "primitive semiconductor"
Termistor
Relief Valve
Vacuum Tube
Transistor
Gate Valve
_____ and_____ invented the transistor
W. Schockley & W. Brattain
J. Bardeen & W. Schockley
J. Lilenfeld & W. Schockley
J. Bardeen & W. Brattain
Which one of these are semiconductive elements?
Boron & Silver
Silicon & Aluminum
Germanium & Phosphorus
Gallium
Gold
Is the most abundant element in earth besides oxygen
Oxigen
Argon
Water
Silicon
Germanium
It defines the microscopic ohm's law
J = E / ρ
I = V / R
P = V * I
V = D / t
Drift velocity is produced when
Electrons are in steady state
A covalent bond is created
Electrons collide with ions in the lattice
None
A ionic bond is created
What is a intrinsic semiconductor?
Doped semiconductors whose mechanical properties is determined by their inherent mechanical properties
Compound semiconductors whose electrical conductivity is determined by their inherent conductivity properties
Pure semiconductors whose electrical conductivity is determined by their inherent conductivity properties
Metals whose electrical conductivity is determined by the properties of other element
A _______ is created when an electron crosses the band gap
Lepton
Electron
Foton
Fonon
Hollow
In an semiconductor when temperature increases...
The resistivity increases
The electric field increases
The conductivity increases
Nothing happens
Covalent bond
