Question

State electric field intensity due to a point charges

Answer 1

To find its intensity at a point 'p' at a distance 'r' from the point charge we place a test charge 'q'. This shows that the electric intensity due to a point charge is directly proportional to the magnitude of charge q and inversely proportional to the square of distance.

Answer 2

The electric field Intensity at a point is the force experienced by a unit positive charge placed at that point...

1. Electric Field Intensity is a vector quantity.
2. It is denoted by ‘E’.
3. Formula: Electric Field = F/q.
4. Unit of E is NC-1 or Vm-1.

The electric field intensity due to a positive charge is always directed away from the charge and the intensity due to a negative charge is always directed towards the charge...