All Problems

Conductors and Dielectrics in an Electric Field

Problem 3.69

A metal ball of radius \(R=1.5 \mathrm{~cm}\) has a charge \(q=10 \mu \mathrm{C}\). Find the modulus of the vector of the resultant force acting on a charge located on one half of the ball.

Reveal Answer
F=q232πε0R2=0.5kNF=\frac{q^{2}}{32 \pi \varepsilon_{0} R^{2}}=0.5 \mathrm{kN}