A straight line plot showing the terminal potential difference (V) of a cell as a function of current (I) drawn from it, is internal resistance of the cell would be then
(i) 2.8 ohms
(ii) 1.4 ohms
(iii) 1.2 ohms
(iv) zero
(ii) 1.4 ohms
(iii) 1.2 ohms
(iv) zero
(i) 2.8 ohms
Explanation:
Given,
I = O
V = 5.6 V
V = E
∴ E = 5.6 V
r = `"E"/"I"`
= `"5.6"/"2"`
= 2.8 ohms
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