Field and its types

Faraday introduced the concept of field, which he defined as a space surrounding an object, such as an electron or magnet, in which other objects are subject to (or affected by) a force

In general we can define field as

Ø   Is a way to depict effects or

Ø   It is some thing that can be define anywhere in space or

Ø   Field can represents a physical quantity like temperature, fluid, wind speed, pressure and force (electric, magnetic and gravitational)

There are three main types of Fields:

Ø  Scalar field: (independent of spatial variation)

e.g. Temperature and pressure field

Ø   Static field: Independent of time variation

e.g. All types of field that don’t vary with time

Ø   Vector field: Varying with position

e.g. electric and magnetic field