Question

prove that 1/r2 dependence of electric fieldlines of a point charge is consistent with the concept of the electric field lines.​

Answer 1

Hence proved Charge Q is inversely proportional to the square of distance from source. i.e. Q ∝ 1/ r^2

Explanation:

• Electric filed line is a vector quantity. It has both magnitude and direction.
• Electric field lines are created by the electric charge which is represented by the symbol Q.
• Electric field strength is measured as
• Electric field strength = Force / Charge
• Charge Q is inversely proportional to the square of distance from source.
• i.e. Q ∝ 1/ r^2

Hence proved Charge Q is inversely proportional to the square of distance from source. i.e. Q ∝ 1/ r^2