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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 2 - Electrostatic Potential and Capacitance > There is a uniform spherically symmetric surface charge density at a distance R0 from the origin . The charge distribution is initially at rest and starts expanding because of mutual repulsion , the figure that represents best the speed V (r(t)) of the distribution as a function of its instantaneous radius R(t) is :

There is a uniform spherically symmetric surface charge density at a distance R0 from the origin . The charge distribution is initially at rest and starts expanding because of mutual repulsion , the figure that represents best the speed V (r(t)) of the distribution as a function of its instantaneous radius R(t) is :

the figure that represents best the speed V (r(t)) of the distribution as a function of its instantaneous radius R(t) is : There is a uniform spherically symmetric surface charge density at a distance R0 from the origin . The charge distribution is initially at rest and starts expanding because of mutual repulsion