In Faradays law of electrolysis, a graph of the mass deposited against the quantity of electricity is plotted. The slope of the graph gives?
The correct expression for the potential at a point distance r from a charge q in an electric field is?
| _q2 |
| 4πεor2 |
| _q2 |
| 4πεor |
| _q |
| 4πεor2 |