JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Graphical Questions

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               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     [CPMT 1988]

    A)            RC = RD

    B)            RB > RA

    C)            RC > RB

    D)            None of these

    Correct Answer: D

    Solution :

                       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 \[{{R}_{A}}>{{R}_{B}}>{{R}_{C}}>{{R}_{D}}\]


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