A long cylindrical wire carries a positive charge of linear density `2.0 xxx 10^(-8) C m^(-1).
Channel: Doubtnut
Date: 2020-07-12

A long cylindrical wire carries a positive charge of linear density `2.0 xxx 10^(-8) C m^(-1). An electron revolves around it in a circular path under the influence of the attactive electrostatic force. Find the kinetic energy of the  electron. Note that it is independent of the radius.