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

 

Let us start reading the preparation article Regarding CBSE 12 Class

NCERT solutions for class 12 Physics chapter 2 ELECTROSTATIC POTENTIAL AND CAPACITANCE: This chapter is the continuation of the chapter 1 Electric Charges and Fields. So you cannot directly jump into the NCERT solutions for class 12 Physics chapter 2 Electrostatic Potential and Capacitance without completing chapter 1. Electrostatic potential and capacitance talk about potential due to different systems of charges and about capacitance and dielectrics. All the topics of NCERT solutions for class 12 Physics chapter 2 Electrostatic Potential and Capacitance are equally important for the CBSE board exam.

The important derivation of the NCERT class 12 Physics chapter 2  is potential and potential energy due to a dipole. Not only derivation and problems are important, the theory portion of dielectric and polarisation are also important. And the exercises of NCERT class 12 chapter 2 are very important since you may get direct questions from there. We provide you with NCERT solutions for class 12 Physics chapter 2 Electrostatic Potential and Capacitance.

The topics under NCERT class 12 chapter 2 Electrostatic Potential And Capacitance are

2.1 Introduction
2.2 Electrostatic Potential
2.3 Potential Due to a Point Charge
2.4 Potential Due to an Electic Dipole.
2.5 Potential Due to a System of Charges
2.6 Equipotential Surface
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  Electrostatic 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 Capacitor
2.14.1 Capacitors in Series
2.14.2 Capacitors in Parallel
2.15 Energy Stored in a Capacitor

Some Important Points of NCERT solutions for class 12 Physics chapter 2 Electrostatic Potential and Capacitance.

  • The potential at a point is the work done in bringing a unit positive charge from infinity to that particular point.
  • Potential due to a point charge q at a distance r from it is given by

  • Potential due to a dipole at a point P at a distance r from the centre of dipole is given by
     

V=\frac{p. \hat r }{4\pi \epsilon_0 r^2}

Where p is the dipole moment and r cap is the unit vector along r.

  • Potential energy due to a dipole in an external field is given by -p.E

The second part of NCERT solutions for class 12 Physics chapter 2 Electrostatic Potential and Capacitance discuss bout capacitance

  • The capacitance of two pates of area separated by a distance d is given by 

C=\frac{\epsilon_0A}{d}

All the solutions of the NCERT grade 12 chapter 2 Electrostatic Potential and Capacitance are given below:

Q 2.1-  Two charges 5 × 10^–8 C and –3 × 10^–8 C are located 16 cm apart. At what point on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero.

Q 2.2-  A regular hexagon of side 10 cm has a charge 5 µC at each of its vertices. Calculate the potential at the centre of the hexagon.

View all solved exercise questions of Electrostatic Potential and Capacitance here.

NCERT Solutions for Class 12 Physics- Chapter wise

Chapter 1

Electric Charges and Fields

Chapter 3

Current Electricity

Chapter 4

Moving charges and magnetism

Chapter 5

Magnetism and Matter

Chapter 6

Electromagnetic Induction

Chapter 7

Alternating Current

Chapter 8

Electromagnetic Waves

Chapter 9

Ray Optics and Optical Instruments

Chapter 10

Wave Optics

Chapter 11

Dual nature of radiation and matter

Chapter 12

Atoms

Chapter 13

Nuclei

Chapter 14

Semiconductor Electronics: Materials, Devices and Simple Circuits

NCERT Solutions for Class 12

 

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