Physics WAEC / WASSCE 2020 Electricity and Magnetism
When two cells of negligible internal resistances and equal e.m.f. denoted by E\(_1\) and E\(_2\) are connected in parallel, combined e.m.f. E is given by
A
E = E\(_1\) + E\(_2\)
B
\(\frac{1}{E} = \frac{1}{E_1} + \frac{1}{E_2}\)
C
E = E\(_1\) = E\(_2\)
D
E = \(\frac{E_1}{E_2}\)