Semiconductors

It helps the aspirant to gain good knowledge about semi-conductors.

15 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

By adding impurities to the intrinsic semiconductor material, which of its electrical characteristic can be controlled?

  1. Conductivity
  2. Resistance
  3. Power
  4. Amplifier
  5. Transistor
Question 2 Multiple Choice (Single Answer)

To which category does doping material belong?

  1. n-type semiconductor
  2. extrinsic semiconductor material
  3. pentavalent material
  4. p-type semiconductor
  5. majority carriers
Question 3 Multiple Choice (Single Answer)

Coal ash is used to manufacture which material in a semiconductor?

  1. Germanium
  2. Tin
  3. Helium
  4. Silicon
  5. Carbon
Question 4 Multiple Choice (Single Answer)

Which of the following conditions should be possessed by an atom for the electron pair bonding to occur?

  1. Lack of electrons
  2. Dipolar bond
  3. Lack of holes
  4. Sharing electrons
  5. Lack of photons
Question 5 Multiple Choice (Single Answer)

The gap that is formed when an electron jumps from the valence shell to the conduction band is called as _________.

  1. energy gap
  2. hole
  3. electron
  4. electron-hole pair
  5. recombination
Question 6 Multiple Choice (Single Answer)

Which of the following can be sensed by a semiconductor?

  1. Conductivity
  2. Resistance
  3. Power
  4. Magnetism
  5. Biasing
Question 7 Multiple Choice (Single Answer)

Which of the following materials will also be considered as a semiconductor element?

  1. Carbon
  2. Tin
  3. Mica
  4. Argon
  5. Ceramic
Question 8 Multiple Choice (Single Answer)

For several times, the activation of minority carriers can be done by _________.<o:p>

  1. power
  2. pressure
  3. dopants
  4. forward bias
  5. heat
Question 9 Multiple Choice (Single Answer)

Most commonly used pentavalent material in a semiconductor is ________.

  1. neon
  2. carbon
  3. boron
  4. gallium
  5. arsenic
Question 10 Multiple Choice (Single Answer)

Majority carriers in a n-type material is/are __________.

  1. holes
  2. dopants
  3. power
  4. electrons
  5. forward bias
Question 11 Multiple Choice (Single Answer)

A combination of silicon atoms in an orderly pattern results in the formation of a ___________.

  1. covalent bond
  2. crystal
  3. semiconductor
  4. valence electron
  5. metallic bond
Question 12 Multiple Choice (Single Answer)

Ionisation within a P-N junction forms a layer on each side of __________________ barrier.

  1. electrical junction
  2. depletion region
  3. barrier voltage
  4. forward voltage
  5. reverse voltage
Question 13 Multiple Choice (Single Answer)

Elements that contain 1, 2 or 3 valence electrons usually make excellent _________.

  1. insulators
  2. dopants
  3. semiconductors
  4. conductors
  5. transistors
Question 14 Multiple Choice (Single Answer)

Which of the following was the significant development in electronics since World War II?

  1. Television
  2. Diode
  3. Transistor
  4. TRIAC
  5. Resistor
Question 15 Multiple Choice (Single Answer)

What are responsible for the depletion region?

  1. Doping
  2. Ions
  3. Electrons
  4. Diffusion
  5. Barrier potential