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STD 12 - 2. Electrochemistry — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 2. Electrochemistry4 Marks
MCQ
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
  • ✓
    Same
  • B
    One-fourth the previous value
  • C
    Four times the previous value
  • D
    $\frac{1}{{16}}th$ of the previous value
✓

Answer

Correct option: A.
Same
a
(a) In the first case, $Zi\,t = m$
In the second case, $Z \times \frac{i}{4} \times 4t = m$

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