Introduction

Flow of electric charge is known as electric current . Moving electron is the carrier of charge. Ampere is the SI unit of measuring electric current. Electric current is the main pillar of modern life ,its difficult to live in this world without Electric currents. This is used for heating, electricity, induce magnetic fields, which are widely used for motors, inductors and generators and day to day life works.

Electricity is indispensable to us. We cant think to live without electricity. Nine of the ten things what we are using are used by electricity. The basic part of electricity is charge. We study phenomenon related to charges at rest under static electricity that is known as electrostatics. And we study phenomenon related to charges in motion under current electricity

NCERT solutions for class 7 Science prepared by pw will help you to solve your NCERT text book exercise.