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NCERT Solutions for Class 12

NCERT Solutions for Class 12 Physics Chapter 1 Free PDF Download

NCERT Solutions for Class 12 Physics Chapter 1 Electric Charges and Fields

This article deals with NCERT Solutions for Class 12 Physics Chapter 1. Physics is certainly a complicated branch of science. However, NCERT Solutions makes this subject pretty easy. Most noteworthy, these solutions clear all fundamental concepts. Hence, the details of Physics become crystal clear for those who learn from NCERT Solutions

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CBSE Class 12 Physics Chapter 1 – Electric Charges and Fields NCERT Solutions

NCERT Solutions for Class 12 Physics Chapter 1 deals with Electric Charges and Fields. This chapter deals with electricity, charge, and discharge. Moreover, it deals with the generation of static electricity. There is certainly a discussion of the various components of electrostatics here.

Subtopics covered under NCERT Solutions for Class 12 Physics Chapter 1

1.1 Introduction

1.2 Electric Charge

1.3 Conductors and Insulators

1.4 Charging by Induction

1.5 Basic Properties of Electric Charge

  • 1.5.1 Additivity of charges
  • 1.5.2 Charge is conserved
  • 1.5.3 Quantisation of charge

1.6 Coulomb’s Law

1.7 Forces between Multiple Charges

1.8 Electric Field

  • 1.8.1 Electric field due to a system of charges
  • 1.8.2 Physical significance of electric field

1.9 Electric Field Lines

1.10 Electric Flux

1.11Electric Dipole

  • 1.11.1 The field of an electric dipole
  • 1.11.2 Physical significance of dipoles

1.12 Dipole in a Uniform External Field

1.13 Continuous Charge Distribution

1.14 Gauss’s Law

1.15 Applications of Gauss’s Law

  • 1.15.1 Field due to an infinitely long straight uniformly charged wire
  • 1.15.2 Field due to a uniformly charged infinite plane sheet
  • 1.15.3 Field due to a uniformly charged thin spherical shell

NCERT Solutions for Class 12 Physics Chapter 1

First of all, this is a vital part of Physics. Moreover, it has applications in a number of fields of science. Furthermore, the chapter will help students in becoming engineers and architects. This is due to the huge application of electricity and related concepts in these fields.

Below is a brief explanation of the sub-units of chapter 1:

1.1 Introduction –

First of all, this part gives a general idea of Electric Charges and Fields. This sub-unit certainly gives a general introduction to the chapter.

1.2 Electric Charge –

This refers to the physical property of matter that causes it to experience a force. Moreover, it happens when the matter is placed in an electromagnetic field.

1.3 Conductors and Insulators –

Conductors are substances which allow electricity to pass through them easily. In contrast, insulators are those which offer high resistance to the passage of electricity.

1.4 Charging by Induction –

This is certainly a process. Most noteworthy, in this process, metal spheres will each be equal and oppositely charged.

1.5 Basic Properties of Electric Charge –

This part certainly discusses the basic properties of electric charge. Furthermore, the minor units here are:

  • 1.5.1 Additivity of charges
  • 1.5.2 Charge is conserved
  • 1.5.3 Quantisation of charge

1.6 Coulomb’s Law –

This refers to a quantitative statement about the force between two point charges.

1.7 Forces between Multiple Charges –

This part provides information on the forces between multiple charges.

1.8 Electric Field –

This can be defined as the electric force per unit charge. The minor parts here are:

  • 1.8.1 Electric field due to a system of charges
  • 1.8.2 Physical significance of electric field

1.9 Electric Field Lines –

Electric field lines certainly provide a means to visualize the electric field.

1.10 Electric Flux –

This is an analogous quantity in the case of the electric field.

1.11Electric Dipole –

This refers to a pair of equal and opposite point charges q and –q. Furthermore, this is separated by a distance 2a. The minor units here are below:

  • 1.11.1 The field of an electric dipole
  • 1.11.2 Physical significance of dipoles

1.12 Dipole in a Uniform External Field –

This part certainly deals with a dipole in a uniform external field.

1.13 Continuous Charge Distribution –

The continuous charge distribution is pretty similar to that we adopt for continuous mass distribution.

1.14 Gauss’s Law –

This law tells that the total electric flux through a closed surface is zero. Furthermore, it happens if no charge is enclosed by the surface.

1.15 Applications of Gauss’s Law –

This part certainly contains applications of Gauss’s Law. It has the following parts:

  • 1.15.1 Field due to an infinitely long straight uniformly charged wire
  • 1.15.2 Field due to a uniformly charged infinite plane sheet
  • 1.15.3 Field due to a uniformly charged thin spherical shell

You can download NCERT Solutions for Class 12 Physics Chapter 1 PDF by clicking on the button below.

NCERT Solutions for Class 12 Physics Chapter 1

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Solved Questions For You:

Question 1. There two types of electric charges positive charges and negative charges. The property which differentiates the two types of charges is:

A. field of charge
B. amount of charge
C. strength of the charge
D. polarity of the charge
Answer:
The property which differentiates the two types of charges is called the polarity of charge.

Question 2. What will happen when we rub a glass rod with silk cloth?

A. Some of the electrons from the glass rod are transferred to the silk cloth
B. The glass rod gets a positive charge and silk cloth gets a negative charge
C. The new charge is created in the process of rubbing
D. both (a) and (b) are correct.

Answer: 

When a glass rod is rubbed with silk cloth then some of the electrons from the glass rod get transferred to silk cloth and thus the glass rod get transferred to silk cloth gets a negative charge. No new charge is created in the process of rubbing.

Question 3. When a person combs his hair, static electricity is generated sometimes by what process?

A. Contact between the comb and hair results in a charge
B. Friction between the comb and hair results in the transfer of electrons
C. Deduction between the comb and hair
D. Induction between the comb and hair
Answer:
While combing hair, friction between the comb and the hair results is the transfer of electrons.

Question 4. A method for charging a conductor without bringing a charged body in contact with it is called:

A. Magnetization
B. Electrification
C. Electrostatic induction
D. Electromagnetic induction
Answer:
Without any contact, a conductor can be charged by forcing the electrons to come at the surface with the help of electrostatic induction.
 
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