In a copper voltmeter, the mass deposited in 30 s is $m$ gram. If the current-time graph is as shown in figure, the electrochemical equivalent of copper, in $gC^{- 1}$ is [image:3_image112.emf]

Question

Dr. Abubacker · Accepted Answer

(c) Average current
$i = \frac{50 + 100 + 50}{3} = \frac{200}{3}$mA
$\ z = \frac{m}{it} = \frac{3m}{200 	imes 10^{- 3} 	imes 30} = \frac{m}{2}$

Q. In a copper voltmeter, the mass deposited in 30 s is $m$ gram. If the current-time graph is as shown in figure, the electrochemical equivalent of copper, in $gC^{- 1}$ is

Explanation

Reviewed by Dr. Abubacker

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