Physics > 2007 > 17
JAMB UTME
Three cells each of e.m.f 1.5V and internal resistance 2.5Ω are connected as shown in the diagram above. Find the net e.m.f. and the internal resistance.
A.
4.5V, 7.50Ω
B.
4.5V, 0.83Ω
C.
1.5V, 7.50Ω
D.
1.5V, 0.83Ω
Answer: D
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