Question

consider two identical conducting spheres, Initially, sphere Has a charge of -50 Mikron and sphere 2 has a charge of +22mikron. They are touched and then separated by a distance of 2m. What is the magnitude of the electrostatic force between them after separation? Is the force attractive or repulsive?

Answer 1

Answer:

when they are touched with each other net charge on each sphere=-(-50+22)/2

=-28/2=-14mikron

r=2m

electrostatic forces between two charges=kq1q2/r^2

=9×10^9×14×14/4=441×10^9