Current Electricity - Result Question 58
61. In electrolysis, the amount of mass deposited or liberated at an electrode is directly proportional to
(a) square of electric charge
[2000]
(b) amount of charge
(c) square of current
(d) concentration of electrolyte
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Answer:
Correct Answer: 61. (b)
Solution:
- (b) By Faraday’s Ist Law
Amount deposited $(m)=Zit=Zq$ $m \propto q$
Amount deposited is directly proportional to charge.
62 .
$ \begin{aligned} & \text{ (a) } E=V-I r \\ & 12=V-60 \times 5 \times 10^{-2} \\ & 12=V-3 \\ & \Rightarrow V=15 \text{ volt } \end{aligned} $