Question

Figure shows a circuit diagram, containing 8 cells of e.m.f 1.5V and internal resistance 0.25-
ohm. Calculate i) total e.m.f of battery ii) total internal resistance iii) total external resistance
iv) current recorded in ammeter.v) current flowing through 12-ohm resistor.
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Answer 1

Answer:

1) total emf is 16 V

2)total internal resistance is 5.5ohm

3)total external resistance is 6ohm

4) current is 2.6A

5) current is 1.3A