A clock has charges on it’s circumference as shown in the figure. A charge of 1 coulomb is taken at the centre and radius is R. The net force on the charge having 1 coulomb has to be found out

Question

A clock has charges on it’s circumference as shown in the figure. A charge of 1 coulomb is taken at the centre and radius is R. The net force on the charge having 1 coulomb has to be found out

Answer 1

If there is a uniform charge on the outside of this clock, and the clock is a circle, then the net force on the charge in the direct center of this circle is zero because there are equal forces on every side of the charge.