ELECTROSTATIC INDUCTION

ELECTROSTATIC INDUCTION

Electrostatic Induction - Electric induction is the phenomenon in which positive and negative charges are accumulated or separated in a substance, when a charged body is brought nearer to it. For example when a negatively charged body A is brought nearer to a conductor BC the near end B acquires positive charge and the far end C acquires negative charge (Fig. 2.4). That means the negative charges in A repelled the electrons in BC to the far end. The amount of  charge in A and in BC are equal in magnitude. If A is positively charged, BC will have the opposite effect. This method of charging a body is known as electrostatic induction and is used in electrostatic machines and capacitors. Electrophorus, lighting arrester and vandegraaff generator are few examples for electrostatic machines.This is known as electrostatic induction