Doc Al said:Coulomb's law... the one you linked.
(FYI: Gauss's law won't help here.)
An electric field is a physical quantity that describes the influence that charged particles have on each other. It is represented by a vector that indicates the direction and strength of the force that a positive charge would experience at a given point in space.
The electric field at a point is determined by the strength and direction of the electric field surrounding the point. This is influenced by the amount and distribution of charged particles in the surrounding space.
The distance of 36.0 cm from the rod center is significant because it is the point at which the electric field is being measured. This distance determines the strength and direction of the electric field at that specific point.
The electric field decreases as the distance from the rod center increases. This is because the influence of the charged particles decreases with distance. The electric field follows an inverse square law, meaning that it decreases proportionally to the square of the distance.
The electric field at a point 36.0 cm from the rod center can be affected by the charge and distribution of charged particles on the rod, as well as any other nearby charged objects. It can also be affected by the material and structure of the surrounding space, which may alter the strength and direction of the electric field.