4.4.95 - Electric field due to a point charge

Use E = Q/(4πε0r²) for the electric field due to a point charge.

Use - electric field due to a point charge to connect the rule to the data and decision in the question.

This matters because - electric field due to a point charge determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - electric field due to a point charge to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Electric field due to a point charge is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.