phy CH-1 electric field and charges

What is an electric charge?

Intrinsic property of matter due to which attraction and repulsion arises.

Types of charges?

Two types :

1.positive

2.negative

What is the Unit of charge?

Coulomb (C)

Methods of charging a body?

1.friction-rubbed

2.conduction-touched

3.Induction

Methods of charging a body?

1.friction-rubbed

2.conduction-touched

3.Induction

What is induction?

Charging neutral body without contact by a charge body

What are the Properties of electric charge?

1.Addition- total charge is algebraic sum

2.conservation of charge

3.quantistaion of charge- [q= +/-ne]

State the law of conservation of charge?

Charge can neither be created nor be destroyed in an isolated system

What is the charge of an electron?

−1.6 × 10⁻¹⁹ C (approximately).

What is the charge of an proton?

+1.6 × 10⁻¹⁹ C (approximately).

What is the charge of an neutron?

Zero, As it is electrically neutral