Question

multiple choice question
the force (f) felt between two charged objects is equal to a constant (k) multiplied by the charges (q) of the two objects, divided by the square of the distance (d) between them is

ohms law

volts law

coulombs law

potential theory

Explanation:

• Ohm's law relates voltage (\(V\)), current (\(I\)), and resistance (\(R\)) as \(V = IR\). It is about electrical circuits, not the force between charged objects.
• Volt's law is not a standard well - known law in physics.
• Coulomb's law states that the electrostatic force \(F\) between two point charges \(q_1\) and \(q_2\) separated by a distance \(r\) is given by \(F=k\frac{q_1q_2}{r^{2}}\), where \(k\) is a constant (\(k = \frac{1}{4\pi\epsilon_0}\) in SI units). This matches the description in the question.
• Potential theory is a broader field in mathematics and physics related to potential functions (like electric potential), but it does not directly give the formula for the force between two charged objects as described.

Answer:

C. Coulomb's law