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An electroplating unit plates 3.0 g of s...

An electroplating unit plates `3.0 g` of silver on a brass plate in `3.0` minutes. Find the current used by the unit. The electrochemical equivalent of silver is `1.12 xx 10^(-6) kg C^(-1)`.

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The correct Answer is:
A
t = 3 min = 180sec w = 3g `
`E.C.E = 1.12xx 10^(-6) xx ixx 180`
` i=(3xx10^(-3)/(1.112xx10^(-6)xx180)`
` =(1)/(6.72)xx10^2 = 15 amp.
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