Question

three identical metal spheres are labelled a, b and c. initially, a has charge +5q/2, b has charge +3q/2 and c has charge -4q. b is first touched to a, removed, then touched to c and removed. finally, all three spheres are brought into contact with one another simultaneously (a touching b while b is also touching c) before once again being separated. what is the final electric charge on sphere b?

Answer 1

Step-by-step explanation:

When all the three are touched together , total charge will be equally distributed among them . Total charge = 5q/2 +3q/2 -4q = 0

Since total charge is zero, charge on each will be zero. Hence b too will have charge equal to zero.