Question

explain electric field due to pt change and hence explain electric intensity formula and unit​

Answer 1

Answer:

The space around an electric charge in which it's influence can be felt is known as electric field.

The Electric field intensity at a point is the force

experienced by a unit positive charge is placed

at that point.

It is denoted by E

E=F/q

unit= NC^-1 (or) Vm^-1

Answer 2

Explanation:

ELECTRIC FIELD :

It is the surrounding a charge in which test charge experience a force is called electric field.

Test Charge - Small positive charge

ELECTRIC FIELD INTENSITY :

Electric field intensity at a point is defined as the force acting on a unit positive charge placed at that point .

FORMULA :

E = k ( q / r^2 )

where,

E = electric field ( it is a vector quantity )

k = proportionality constant ( in SI system the value of 'k' is 9 × 10^9 )

r = distance apart

UNIT :

The unit of electric field intensity is N/C or V/m in SI