All Problems

Constant Electric Field in a Vacuum

Problem 3.5

A thin wire ring of radius \(r\) has an electric charge \(q .\) What will be the increment of the force stretching the wire if a point charge \(q_{0}\) is placed at the ring's centre?

Reveal Answer
ΔT=qq08π2ε0r2\Delta T=\frac{q q_{0}}{8 \pi^{2} \varepsilon_{0} r^{2}}