Electronics Gk — Part 1 MCQs with Explanations

silicon is the correct answer to “An integrated circuit, also called an IC chip, is a group of electronic circuits built on a small plate made up of . . . . . . . .”. This question is standard in competitive examination syllabi for Electronics Gk.

Quartz is the correct answer to “Which one of the following is not a semiconductor”. This question is standard in competitive examination syllabi for Electronics Gk.

All of the above is the correct answer to “Digital circuits are used in”. This question is standard in competitive examination syllabi for Electronics Gk.

Germanium is the correct answer to “. . . . . . . . was later discovered and replaced with silicon.”. This question is standard in competitive examination syllabi for Electronics Gk.

Light Emitting Diode is the correct answer to “The full form of LED is”. This question is standard in competitive examination syllabi for Electronics Gk.

A rectifier is the correct answer to “The p - n junction diode is used as”. This question is standard in competitive examination syllabi for Electronics Gk.

Semiconductor is the correct answer to “Germanium is mainly used for . . . . . . . .”. This question is standard in competitive examination syllabi for Electronics Gk.

PNP transistor is the correct answer to “The figure shown below represents-”. This question is standard in competitive examination syllabi for Electronics Gk.

Transistor is the correct answer to “Which one among the following components is used as an amplifying device”. This question is standard in competitive examination syllabi for Electronics Gk.

reverse is the correct answer to “In p - n junction, avalanche current flows in circuit when biasing is”. This question is standard in competitive examination syllabi for Electronics Gk.

increase the potential barrier is the correct answer to “The reverse biasing in a p-n junctions diode”. This question is standard in competitive examination syllabi for Electronics Gk.

4 is the correct answer to “In atoms of germanium, arsenic, selenium and bromine there are . . . . . . . . orbits.”. This question is standard in competitive examination syllabi for Electronics Gk.

the doped silicon piece will become p-type is the correct answer to “When a piece of pure silicon is doped with aluminium, then”. This question is standard in competitive examination syllabi for Electronics Gk.

Ge is the correct answer to “. . . . . . . . is a semiconductor”. This question is standard in competitive examination syllabi for Electronics Gk.

radio waves is the correct answer to “Light Emitting Diode (LED) is used in electronic devices, such as television emits . . . . . . . .”. This question is standard in competitive examination syllabi for Electronics Gk.

1 and 2 is the correct answer to “Consider the following statements. 1. A p - n junction diode is a basic semiconductor device. 2. A p - n junction diode can work as excellent rectifier. 3. The p - n junction diode cannot be used as a half-wave rectifier. Which of the statements given above is/are correct”. This question is standard in competitive examination syllabi for Electronics Gk.

increase in depletion layer thickness is the correct answer to “Avalanche breakdown is due to”. This question is standard in competitive examination syllabi for Electronics Gk.

Semiconductor is the correct answer to “Silicon is which type of material”. This question is standard in competitive examination syllabi for Electronics Gk.

Only 3 is the correct answer to “Consider the following statements. 1. Zener diode is not used as a voltage stabiliser. 2. A Solar cell is a p - n junction diode which converts electrical energy into solar energy. 3. LED is an important light source used in optical communication. Which of the statement given above is/are correct”. This question is standard in competitive examination syllabi for Electronics Gk.

the base has the least concentration of impurity is the correct answer to “In a bi-polar junction transistor,”. This question is standard in competitive examination syllabi for Electronics Gk.

Highly doped p-n junction diode is the correct answer to “Tunnel diode is a”. This question is standard in competitive examination syllabi for Electronics Gk.

Three valent impurities is the correct answer to “To obtain a P-type semiconductor-”. This question is standard in competitive examination syllabi for Electronics Gk.

LED bulb is the correct answer to “Which among the following is most helpful in energy savings”. This question is standard in competitive examination syllabi for Electronics Gk.

Both A and R are true and R is the correct explanation of A is the correct answer to “Assertion (A) Light Emitting Diode (LED) emits spontaneous radiation. Reason (R) LED are forward biased p - n junction.”. This question is standard in competitive examination syllabi for Electronics Gk.

Under reverse biased is the correct answer to “When does a break down occur in junction”. This question is standard in competitive examination syllabi for Electronics Gk.

electrons are the majority carriers and holes are the minority carriers is the correct answer to “In a n-type semiconductor”. This question is standard in competitive examination syllabi for Electronics Gk.

AC voltage stabiliser is the correct answer to “Zener diode is used as”. This question is standard in competitive examination syllabi for Electronics Gk.

electrons having high mobility than holes is the correct answer to “NPN transistors are preferred to PNP transistors because they have”. This question is standard in competitive examination syllabi for Electronics Gk.

holes is the correct answer to “The majority charge carriers in a p-type semiconductor are”. This question is standard in competitive examination syllabi for Electronics Gk.

Hearing aid is the correct answer to “Where is a transistor most likely to be found”. This question is standard in competitive examination syllabi for Electronics Gk.

electrons will be generated and N-type material is the correct answer to “When donor type impurity is added to the semiconductor system. Then”. This question is standard in competitive examination syllabi for Electronics Gk.

Both A and R are true, but R is not the correct explanation of A is the correct answer to “Assertion (A) An N-type semiconductor has a large number of electrons but still it is electrically neutral. Reason (R) An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.”. This question is standard in competitive examination syllabi for Electronics Gk.

Germanium is the correct answer to “Which of the following is widely used in making semiconductor chips”. This question is standard in competitive examination syllabi for Electronics Gk.

Doping is a process of increasing the electrons or holes is the correct answer to “Doping in semi-conductor glossary is:”. This question is standard in competitive examination syllabi for Electronics Gk.

a-3, b-4, c-2, d-1 is the correct answer to “Match the following. List-I List-II a. Germanium at 0 K 1. n-type semiconductor b. Germanium at room temperature 2. p-type semiconductor c. Germanium doped with indium 3. Insulator d. Germanium doped with arsenic 4. Intrinsic semiconductor”. This question is standard in competitive examination syllabi for Electronics Gk.

To increase the voltage, power or current, of the input signals is the correct answer to “The purpose of the amplifier is to:”. This question is standard in competitive examination syllabi for Electronics Gk.

Krypton is the correct answer to “Which of the following is not a semiconductor”. This question is standard in competitive examination syllabi for Electronics Gk.

Silicon is the correct answer to “Integrated circuits are made up of which of the following”. This question is standard in competitive examination syllabi for Electronics Gk.

rectifier is the correct answer to “The diode is used as a . . . . . . . .”. This question is standard in competitive examination syllabi for Electronics Gk.

Light Amplification by Stimulated Emission of Radiation is the correct answer to “The term LASER stand for”. This question is standard in competitive examination syllabi for Electronics Gk.