Define the terms electric field (E) and the potential difference between the two points. Derive the relationship between the two.


The electric field intensity at a point is the force experienced by a unit positive charge placed at that point. The electric field intensity determines the strength of an electric field at that point.

The potential difference between two points informs us how much energy a unit charges obtains when travelling from one point to the next.


Electric field intensity is proportional to the -ve of the rate of change of potential with respect to the range or distance.

E = -dV/dr


V = Potential difference between the two points.

R = Distance.

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