A metal object is to be coated with a nickel layer 0.3 mm thick. The s – InterviewSolution

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1.	A metal object is to be coated with a nickel layer 0.3 mm thick. The surface areaof the object is 100 cm^2 . The density of nickel is 9.0 g//cm^3. How long will it take to pass a 3-amp current if the current yield is 90%?
Answer» SOLUTION :9 H 8 min 25 s

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