Variation of current passing through a conductor as the voltage applied across its ends as varied is shown in the adjoining diagram. If the resistance (R) is determined at the points A, B, C and D, we will find that

Text Solution
Verified by ExpertsThe correct answer is:
D
From the curve it is clear that slopes at points A, B, C, D have following order A > B > C > D.
and also resistance at any point equals to slope of the V-i curve.
So order of resistance at three points will be 
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