Semiconductor Electronics Important Questions for NEET 2025 Download PDF

Semiconductor Electronics Important Questions for NEET: Semiconductor Electronics is an important topic for the NEET exam. Every year, questions from this chapter appear in the exam. Understanding semiconductors is necessary because they are widely used in electronic devices like diodes, transistors, and integrated circuits. Mastering this topic will help you score well in the Physics section of NEET.

Semiconductor Electronics Important Questions for NEET Overview 

Semiconductor Electronics is a crucial chapter in Physics for NEET. It helps students understand how electronic components work and their role in modern technology. This topic covers the basics of semiconductors, types, and their applications in electronic devices. Solving important questions from this chapter will improve your understanding and help in NEET preparation.

What are Semiconductor Electronics?

Semiconductors are materials that have electrical conductivity between conductors (like metals) and insulators (like rubber). The most commonly used semiconductor material is silicon. Semiconductors are used to make electronic components such as diodes, transistors, and integrated circuits.

There are two types of semiconductors:

• Intrinsic Semiconductors: Pure semiconductors without any impurities.

• Extrinsic Semiconductors: Semiconductors with added impurities to improve conductivity. They are further divided into:

• P-type Semiconductors: Have more holes (positive charge carriers).

• N-type Semiconductors: Have more electrons (negative charge carriers).

Practice Important Questions of Semiconductor Electronics for NEET

Q1 The majority of current carriers in an n-type semiconductor are

1. Holes
2. Electrons
3. Negative ions
4. Positive ions

Q2 Current through the ideal diode is:

1. Zero
2. 20 A
3. (1/20) A
4. (1/50) A

Q3 Identify the logic gate which follows the following input-output waveform

1. OR gate
2. AND gate
3. NOT gate
4. XOR gate

Q4 The solids which have the negative temperature coefficient of resistance are

1. Insulator only
2. Semiconductors only
3. Insulators and semiconductors
4. Metals

Q5 Output of Boolean circuit as shown in figure in which inputs are A and B is:

1. AB
2. AB + A'B
3. AB + AB
4. A + B + A'B

Q6 Which one of the following represents forward bias diode?

Q7 In figure given below V₀ is the potential barrier across a p - n junction, when no battery is connected across the junction:

1. 1 and 3 both correspond to forward bias of junction.
2. 3 corresponds to forward bias of junction and 1 corresponds to reverse bias of junction.
3. 1 corresponds to forward bias and 3 corresponds to reverse bias of junction.
4. 3 and 1 both correspond to reverse bias of junction.

Q8 The dominant mechanisms for motion of charge carriers in the forward and reverse biased silicon p - n junctions are

1. drift in forward bias and diffusion in reverse bias
2. diffusion in forward bias and drift in reverse bias
3. diffusion in both forward and the reverse bias
4. drift in both forward and reverse bias

Q9 The given electrical network is equivalent to

1. AND gate
2. OR gate
3. NOR gate
4. NOT gate

Semiconductor Electronics Important Questions for NEET PDF

You can download the complete set of important questions for Semiconductor Electronics in NEET as a PDF. This PDF includes a variety of practice questions along with detailed solutions. These questions are carefully selected to help students prepare effectively for NEET. 

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