Question

how does the strength of a non contact force vary with distance of separation

Answer 1

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Answer 2

Answer: The force of a non contact force is inversely proportional to the distance of the separation between the charged bodies.

Explanation:

Non contact forces: When the objects are not in contact with each other then the resulting force is non contact forces. For example, electrostatic force.

This force is acting when there is no contact between the charged bodies.

The following is the coulomb's law is as follows;

$F=\frac{kq_{1}q_{1} }{r^{2} }$

Here, F is the electrostatic force, k is the constant of proportionality, $q_{1}q_{1}$ are the charges and r is the distance between the charges.

The electrostatic force follows inverse square law. It is inversely proportional to the distance between the charges. It increases with the decrease in the separation of distance between the charges.