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

  • question_answer
    In a copper voltameter experiment, current is decreased to one-fourth of the initial value but it is passed for four times the earlier duration. Amount of copper deposited will be [MP PMT 1993]

    A)                    Same

    B)                    One-fourth the previous value

    C)                    Four times the previous value

    D)                    \[\frac{1}{16}th\] of the previous value

    Correct Answer: A

    Solution :

                       In the first case, \[Zi\,t=m\] In the second case, \[Z\times \frac{i}{4}\times 4t=m\]


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