NEET Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर NEET PYQ-Current Electricity Charging Capacitors

  • question_answer
    In electrolysis the mass deposited on an electrode is directly proportional to:                            [AIPMT 2000]

    A)        current 

    B)  square of current

    C)  concentration of solution

    D)       inverse of current

    Correct Answer: A

    Solution :

    [a] In electrolysis, according to first law of Faraday, the mass of a substance deposited at an electrode is directly proportional to the charge passed through the electrolyte i.e.,
                            \[m\propto \,q\]
                If a current i passes for a time t, then as we know,
                            \[q=\]it
                Hence,  \[m\,\propto \,\,it\]
                or         \[m\,\propto \,\,i\]
    Thus, mass deposited at an electrode is directly proportional to current.


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