0.03A
0.04A
0.05A
0.06A
Correct answer is C
From faraday's law of electrolysis
M = I t Z
0.990 = I x (40 x 60) x 3.3 x 10-4
⟹0.9902400×3.3×10−4=1.25AThus the correction to be made =1.25−1.20=0.05A
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