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Physics Waves And Oscillations Level: University

Transfer of Charge
Two identical conducting spheres carry chagres of +5.0 uC and -1.0 uC respectively. The centers of the spheres are initially separated by a distance L. The two spheres are brought together so that they are in contact. The spheres are then returned to their original separation. What is the ratio of the magnitude of the force on either charge after the spheres are touched to the before they were touched?
(a) 1/1
(b) 4/5
(c) 9/5
(d)5/1
(e) 4/9