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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
    For depositing 1 gm of Cu in copper voltameter on passing 2 amperes of current, the time required will be (For copper  Z = 0.00033 gm/C)

    A)                    Approx. 20 minutes   

    B)                    Approx. 25 minutes

    C)                    Approx. 30 minutes   

    D)                    Approx. 35 minutes

    Correct Answer: B

    Solution :

                       \[m=Zi\,t\] Þ \[1=0.00033\times 2\times t\] \ \[t=\frac{1}{0.00066\times 60}min=\frac{100000}{3960}\approx 25\,min\]


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