Fundamentals of Physics Chapter 41 Solutions: Conduction of Electricity in Solids
Resnick Halliday and Walker Fundamentals of Physics Volume 2 Solutions for Chapter 41 ‘Conduction of Electricity in Solids’ is a gem for the ones preparing Physics for Class 12 Boards as well as entrance exams like JEE and NEET. The solutions for Conduction of Electricity in Solids will give you a brief glance of the topics included in this chapter of Resnick Halliday Walker such as electrical properties of metals, semiconductors and doping, the p-n junction and transistor, etc. As you go through these topics, you will understand the basic properties of crystalline solids, energy band gaps of semiconductors, lattice structures of pure silicon and doped silicon, about holes, and many more.
Resnick Halliday & Walker Physics Conduction of Electricity in Solids Solutions include 53 numerical word problems that have been categorized into different exercise modules. These questions will add up great confidence regarding the concepts of the chapter. It has questions generally based on specific topics such as semiconductors and doping, diodes, transistors, and so on. You will be able to find the Fermi energy of several metals, will be able to solve questions on occupancy probability functions, and to find the current in the p-n junction rectifier, and so on. Regular practise of these questions will help you score well in your Class 12 Physics exam.
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Important Topics of Resnick Halliday & Walker Fundamentals of Physics Volume 2 Solutions Chapter 41: Conduction of Electricity in Solids
You know in solids, metals are the most important components and they possess great conductivity in electricity. So, in this chapter, you are going to study these types of conductivity of metals. Apart from this, you will also learn about several important topics under this chapter.
Electrical Properties of Solids-
Well, you know the electrical properties of solids can be imagined only if we know how it conducts!
So, does it conduct?. The answer is yes. But, Are all solids conducting electricity in the same amount?. This time the answer is no. All solids are not conducting equally; only some of them are conducted in equal amounts. Also, there are some solids who do not conduct at all.
Based on the conductivity, Solid can be divided into three categories-
Conductors- It’s a material which conducts electricity. In simple words, a material that helps in flowing a current. But how does conduction take place? The reason is simply that the electrons inside the material started flowing from atom to atom, that leads to conduction.
Some common examples of conductors are –
Insulators- It is in contrast to conductors, semiconductors. Why so? The reason is that it does not have that free of an electron in their materials that can move freely when an external electric field is applied to them.
Some examples of Insulators are-
- Dry air
Semiconductors- Simply, we can say the semiconductors are the materials, conductivity lies between the conductors and Insulators. In semiconductors, the positive charge carriers holes move opposite to the direction of flow of electrons.
Types of semiconductors-
- Intrinsic Semiconductor
- Extrinsic semiconductor.
Doping- You know that intrinsic semiconductors are impure forms of semiconductors. It possesses low conductivity that’s why a widely used technique has been used to make intrinsic semiconductor more conductive. What actually this doping technique works?. So, in this, certain impurities, usually trivalent and pentavalent impurities are added upon the intrinsic semiconductor that will create extra holes or free electrons that will help in conductivity.
Phosphorus, Arsenic, Bismuth, and Antimony are the most prominent impurities used in the doping process.
Transistors- Transistors are termed as amplifying circuits. It’s a semiconductor material which is used for amplifying the conductivity of semiconductors to amplify the electric current and voltage across it. It has 3 terminals: Base, Collector, and Ammeter, respectively. They also helped in improving conductivity but not in a big manner.
You can see the terminals in these two types of transistors PNP and NPN –
Diodes are nothing, it is an electric component that helps to improve the conductivity of the material. Diodes tend to conduct current in a single direction. It possesses two junctions
There are several types of diodes and we are seeing some of them are-
- P-n junction diode
- Schottky diode
- Laser diode.
Exercise Discussion of Resnick Halliday and Walker Physics Volume 2 Solutions Chapter 41: Conduction of Electricity in Solids
Module-1: Electrical Properties of Metals
This will provide 30 Halliday Resnick and Walker Volume 2 Solutions Chapter 41 Conduction of Electricity in Solids problems based on Electrical properties of metals. In these questions, you will be asked to find the Fermi levels of an electron, no. of the density of conduction electrons, and to find the probability of electron. You just go through the fermi- distribution function to tackle these questions.
Module-2: Semiconductors and Dopings
Questions in this module will help you understand each and everything about the semiconductors and doping. With 8 questions you will be asked to find a probability of doped materials, to find the energy per bond, to find the charge of gallium and arsenic ions, etc.
Module-3: The p-n Junction and Transistor
This module has 6 questions based on the p-n junction and transistor. Solving each of them once your all the concepts regarding The p-n Junction and Transistor will be brightened.
Additional problems :
You will be given 11 questions in this section. These questions are usually based on all the concepts. You just solve it once, you will feel more confident about the Conduction of Electricity in Solids.
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