Question

The electric field at a point on the equatorial plane at a distance r from the centre of a dipole having dipole moment `vec "p"` is given by, (r >> separation of two charges forming the dipole, `epsilon_0 - ` permittivity of free space) ____________.

Options

• `vec "E" = - vec "p"/(4 piepsilon_0  "r"^3)`

• `vec "E" = vec "p"/(4 piepsilon_0  "r"^3)`

• `vec "E" = (2 vec "p")/(4 piepsilon_0  "r"^3)`

• `vec "E" = - vec "p"/(4 piepsilon_0  "r"^2)`

Answer 1

The electric field at a point on the equatorial plane at a distance r from the centre of a dipole having dipole moment `vec "p"` is given by,`vec "E" = - vec "p"/(4 piepsilon_0  "r"^3)`.