Semiconductors
It helps the aspirant to gain good knowledge about semi-conductors.
Questions
By adding impurities to the intrinsic semiconductor material, which of its electrical characteristic can be controlled?
- Conductivity
- Resistance
- Power
- Amplifier
- Transistor
To which category does doping material belong?
- n-type semiconductor
- extrinsic semiconductor material
- pentavalent material
- p-type semiconductor
- majority carriers
Coal ash is used to manufacture which material in a semiconductor?
- Germanium
- Tin
- Helium
- Silicon
- Carbon
Which of the following conditions should be possessed by an atom for the electron pair bonding to occur?
- Lack of electrons
- Dipolar bond
- Lack of holes
- Sharing electrons
- Lack of photons
The gap that is formed when an electron jumps from the valence shell to the conduction band is called as _________.
- energy gap
- hole
- electron
- electron-hole pair
- recombination
Which of the following can be sensed by a semiconductor?
- Conductivity
- Resistance
- Power
- Magnetism
- Biasing
Which of the following materials will also be considered as a semiconductor element?
- Carbon
- Tin
- Mica
- Argon
- Ceramic
For several times, the activation of minority carriers can be done by _________.<o:p>
- power
- pressure
- dopants
- forward bias
- heat
Most commonly used pentavalent material in a semiconductor is ________.
- neon
- carbon
- boron
- gallium
- arsenic
Majority carriers in a n-type material is/are __________.
- holes
- dopants
- power
- electrons
- forward bias
A combination of silicon atoms in an orderly pattern results in the formation of a ___________.
- covalent bond
- crystal
- semiconductor
- valence electron
- metallic bond
Ionisation within a P-N junction forms a layer on each side of __________________ barrier.
- electrical junction
- depletion region
- barrier voltage
- forward voltage
- reverse voltage
Elements that contain 1, 2 or 3 valence electrons usually make excellent _________.
- insulators
- dopants
- semiconductors
- conductors
- transistors
Which of the following was the significant development in electronics since World War II?
- Television
- Diode
- Transistor
- TRIAC
- Resistor
What are responsible for the depletion region?
- Doping
- Ions
- Electrons
- Diffusion
- Barrier potential