Question

Electric field due to a single charge is ____?

Answer 1

Electric field due to a single charge:

1. A vector field that can be associated with each point in space, the force per unit charge exerted on a positive test charge at rest at that point is called an electric field.
2. The SI unit of the electric field is $\mathrm{newton}\mathrm{per}\mathrm{coulomb}$.
3. Because the electric field of a charged object has the same magnitude on every point of an imaginary sphere concentrated on the charge q, it shows spherical symmetry.
4. The direction of the field is the same as the direction of the force acting on the positive charge. It would exert force on a positively ($+$) charged particle while acting in the opposite direction as a negatively ($-$) charged particle.

The diagram is shown below:

Therefore, the electric field due to a single charge is spherically symmetric.