Important MCQ | Materials and Components | Basic Electronics MCQ Quiz
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In this section of Electronic Devices and Circuits. It contains Electronics Component MCQs (Multiple Choice Questions Answers).
- gate and source
- cathode and drain
- anode and cathode
- collector and base
Question 1: The electrodes of a semi-conductor diode are known as?
Answers: anode and cathode
- GeAs
- Si
- C
- Ge
Question 2: Mobility of electrons is highest in?
Answers: GeAs
- Copper wire
- Carbon resistance
- Tungsten wire
- Diode
Question 3: Which of the following ohmic resistance?
Answers: Diode
- A pentavalent Impurity is added
- A trivalent Impurity is added
- None of these
- Both are added
Question 4: To obtain the P-type semiconductor?
Answers: A trivalent Impurity is added
- lonic Bond
- Metallic Bond
- Covalent Bond
- Coordinate Bond
Question 5: The bond formed by sharing of electrons by two or more atoms is called?
Answers: Covalent Bond
- 2
- 5
- 3
- 4
Question 6: Valency of silicon is ?
Answers: 4
- No change in width of depletion regions
- Width of the depletion region on n-side
- Width of the depletion region on p-side
- Width of the depletion region on both sides
Question 7: The doping concentration on the n-side of a p-a junction diode is enhanced. Which one of the following will get affected?
Answers: Width of the depletion region on n-side
- May be anywhere in the forbidden energy gap
- Is near the valence band
- Lies at the centre of forbidden energy gap
- Is near the conduction band
Question 8: In an intrinsic semiconductor, the Fermi level?
Answers: Lies at the centre of forbidden energy gap
- 0.2 eV above the valence band
- 0.5 eV above the valence band
- Below the valence band
- None of the above
Question 9: In a P type material the Fermi level is 0.3 eV above the valence band. The concentration of accepter atoms is increased. The new position of Fermi level is likely to be ?
Answers: 0.2 eV above the valence band
- Mixture of silicon and germanium
- Germanium
- None of the above
- Silicon
Question 10: Most commonly used semiconductor material is?
Answers: Silicon
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Correct: 0 Wrong: 0
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