Questions
The figure shows a graph of current (I) flowing through a cell against its terminal voltage (V). The emf and internal resistance of this cell are :
a
1 V; 0.25 Ω
b
1 V; 4 Ω
c
1 V; 1 Ω
d
0.25V; 0.25 Ω
detailed solution
Correct option is A
At I = 0, E = VT So, E = IVWhen VT=0, I=εrSo, r=14⇒r=0.25ΩTalk to our academic expert!
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