CAIE IGCSE Physics 4.3.2.3 Combined e.m.f. of several sources in
CAIE IGCSE Physics 4.3.2.3 Combined e.m.f. of several sources in
Practise adding cell e.m.f.s in series and working backwards from a battery voltage to find the e.m.f. or number of cells.
How this is tested
- calculate total e.m.f. by adding cell or battery voltages in series
- determine the number of identical cells from a battery e.m.f. and one cell's e.m.f