Physics · Electric Charges & Fields · Work, Energy & Power
Problem
A disk of radius R and uniform positive charge density σ lies in the xy-plane. Along the z-axis V(z)=σ(√(R²+z²)−z)/(2ε₀). A positive charge q starts from rest at z=z₀>0 and also experiences F=−c k^, c>0. Let β=2ε₀c/(qσ). Which statement(s) is(are) correct?