2013 · Q111
111. If two conducting spheres are separately charged and then brought in contact
General KnowledgePhysics
- Athe total energy of the two spheres is conserved
- Bthe total charge on the two spheres is conserved
- Cboth the total energy and the total charge are conserved
- Dthe final potential is always the mean of the original potential of the two spheres
Explanation
Total charge is conserved when the spheres are brought in contact; the official key marks B.