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NCERT Solutions for Class 12 Physics, Chapter 2 - Electrostatic Potential and Capacitance

In this chapter, you’ll study about Electrostatic Potential and Capacitance. First of all, what is an electrostatic force? An Electrostatic Force is a force that takes place due to stationary electric charges or fields. And what is an Electrostatic Potential? The electrostatic potential is the amount of work done in order to move a unit of charge from one point to a definite point inside the field without producing any acceleration. In this chapter, you’ll learn about electrostatic potential due to a point charge, electric dipole and a system of charges.  You’ll also come across equipotential surfaces, electrostatics of conductors, dielectrics and polarization, capacitors and capacitance, a combination of capacitors and much more.

Thus, an in-depth study of Class 12 Physics NCERT Solutions Chapter 2 will give you a good understanding of significant aspects of Electrostatic potential and capacitance.

Let’s take a look at topics and sub-topics of Class 12 Physics Chapter 2 – Electrostatic Potential and Capacitance 

2.1 Introduction

2.2 Electrostatic Potential

2.3 Potential due to a Point Charge

2.4 Potential due to an Electric Dipole

2.5 Potential due to a System of Charges

2.6 Equipotential Surfaces

2.6.1 Relation between field and potential

2.7 Potential Energy of a System of Charges

2.8 Potential Energy in an External Field

2.8.1 Potential energy of a single charge

2.8.2 Potential energy of a system of two charges in an external field

2.8.3 Potential energy of a dipole in an external field

2.9 Electrostatics of Conductors

2.10 Dielectrics and Polarisation

2.11 Capacitors and Capacitance

2.12 The Parallel Plate Capacitor

2.13 Effect of Dielectric on Capacitance

2.14 Combination of Capacitors

2.14.1 Capacitors in series

2.14.2 Capacitors in parallel

2.15 Energy Stored in a Capacitor

In Class 12 Physics Chapter 2, you will learn - 

Section 2.2 – In this section, you will study what electrostatic potential is all about, what is potential energy and go through related diagrams.

Section 2.3 – In this section, you’ll learn what ‘Potential due to a Point Charge’ means along with related equations, diagrams and solved examples.

Section 2.4 – In this section, you’ll study what is ‘Potential due to an Electric Dipole’, along with related equations, diagrams and significant features of the electric potential of a dipole.

Section 2.5 – In this section, you’ll learn what ‘Potential due to a System of Charges’ is, along with related equations, diagrams, and solved examples.

Section 2.6 – In this section, you will study what an equipotential surface is all about, a diagrammatic representation of equipotential surfaces for a uniform electric field, some equipotential surfaces for a dipole and for two identical positive charges.

Section 2.7 – In this section, you will learn what ‘Potential Energy of a System of Charges’ is, along with some solved examples, and related diagrams.

Section 2.8 – In this section, you’ll study about potential energy in an external field, the potential energy of a single charge, potential energy of a system of two charges in an external field and potential energy of a dipole in an external field along with diagrams, equations and solved examples.

Section 2.9 – In this section, you will study what electrostatics of conductors are, some salient features of the electrostatics of conductors and what is electrostatic shielding.

Section 2.10 – In this section, you’ll learn what are dielectrics and polarisation, the difference in the behaviour of a conductor and a dielectric in an external electric field¸ some examples of polar and non-polar molecules and what is electric susceptibility.

Section 2.11 – In this section, you’ll acquire knowledge about capacitors and capacitance, salient features of capacitors along with diagrammatic representation.

Section 2.12 – In this section, you’ll learn what parallel plate capacitor is, related equations and significant characteristics of a parallel plate capacitor.

Section 2.13 – In this section, you will study the effect of dielectric on capacitance, what is permittivity of a medium and permittivity of a vacuum, dielectric constant of the substance and electric displacement.

Section 2.14 – In this section, you will learn about the combination of capacitors, two possibilities of combination of capacitors such as capacitors in series, and capacitors in parallel.

Section 2.15 – In this section, you will acquire knowledge about the energy stored in a capacitor along with related equation, diagrams and solved examples.

In this chapter, you are provided with several examples with their solutions for a clear understanding of Electrostatic Potential and Capacitance. To know more about NCERT Solutions for Class 12 Physics Chapter 2, you should explore the exercises mentioned in this chapter. You can also download the NCERT Solutions for Class 12 Physics Chapter 2 PDF, solved by our science experts.

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