Question

3 Initially, sphere A has a charge of -50e and sphere B has a charge of +20e.
The spheres are made of conducting material and are identical in size. If
the spheres then touch, what is the resulting charge on sphere A?
A. +15e B.-15e
C. +35e D. -35e​

Answer 1

Answer:

Explanation:

Charge of sphere A = -50e  

charge of  sphere B = +20e

Total charge = -50 + 20 = -30e

after touching each sphere Total charge/2

charge of sphere A' = total charge/2

                                 =  -30/2

here A' is the charge after touching each sphere

so charge of sphere A' = -15e