Question 35
Current ElectricityWhich of the following factors has no effect on the e.m.f. of a primary cell?
- A.temperature
- B.size of the cell
- C.Nature of the plates
- D.Nature of the electrolyte.
Show the answer and explanation
Answer: B (size of the cell)
Explanation
The e.m.f. of a cell is set by the chemicals (plates and electrolyte) used; a bigger cell of the same type has the same e.m.f., only more capacity.