Electric Charge

Electric Charge is the Intrinsic property of fundamental particles (like electrons, w bosons and quarks etc).

OR

 Electric charge is the intrinsic physical property of matter that causes it to experience a force when kept in an electric or magnetic field. 

An electric charge is associated with an electric field, and the moving electric charge generates a magnetic field. A combination of electric and magnetic fields is known as the electromagnetic field. 

Electrostatics

• The study of charges at rest is called electrostatics.
• The fundamental law of electrostatics is called Coulomb's law.

Current and Electricity 

• The study of charges with constant speed is called current and electricity.
• The fundamental law of current and electricity is Ohm's law. 

Electricity and Magnetism 

• The study of charges with variable speed is called electricity and magnetism. 
• The fundamental laws of electricity and magnetism are Maxwell Equations.