Electric Charges and Fields

Class 12 Physics Chapter 1

{as per NCERT book}


1.1 Introduction

Electrostatics deals with the study of forces, fields and potentials arising from static charges.

The word 'Electrostatics' is made up from two words - 'Electric' and 'Statics'. So, 'electrostatics' stands for static (i.e. stationary) charges and their effects.

1.2 Electric Charge

  • There are some pair of materials which when rubbed together, produces static electricity. e.g. glass rod & silk cloth.
  • There are two types of charges - positive & negative.
  • Like charges repel, opposite charges attract.
  • A simple apparatus to detect charge on a body is the Gold-leaf Electroscope.
  • A negatively charged body has an excess of electrons, whereas, a positively charged body has a shortage of electrons.
Photo of Instructor

Anupal Bharali

B.E. (EEE)


I have a complete course on this Chapter 1.

It is on Udemy. You can have a free Preview of the course by clicking here .

Or copy and paste the following link in your browser's address bar:


The full course fee is US $29.99  (around Rs. 1,900/-), but you can get up to 70% discount by using the Instructor's Discount coupon.  Please WhatsApp me at (+91 93653 68668), or, email me at [email protected] to get the discount coupon.

 1.3 Conductors and Insulators

 1.4 Charging by Induction

1.5 Basic Properties of Electric Charge

  1. Additivity of charges
  2. Charge is conserved
  3. Quantisation of charge

Next: Coulomb's Law 

Total Page Visits: 163 - Today Page Visits: 1
%d bloggers like this: