Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test 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
5
None of the above/More than one of the above.