Teaching EMRS PGT Mock Test 2023 Physics Current, Resistance and Electricity Cells in Series and in Parallel
The emf of the three cells A, B, and C is 6 volts, 8 volts, and 16 volts respectively and the internal resistance of all the cells is 2Ω. When all the cells are connected in series across an external resistance 9Ω, then the potential difference across the external resistance will be:
1
18 volts
2
30 volts
3
9 volts
4
27 volts