To get a uniform and smooth coating of superior metal,

Small current for short duration is preferred

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Small current for longer duration is preferred

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High current for longer duration is preferred

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High current for small duration is preferred

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Solution

The correct option is B
Small current for longer duration is preferred

During electroplating a small current passage for a longer time is preferred over high current for a shorter period,to get a uniform and smooth coating of superior metal.

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To get a uniform and smooth coating of superior metal,

The correct option is B Small current for longer duration is preferred During electroplating a small current passage for a longer time is preferred over high current for a shorter period,to get a uniform and smooth coating of superior metal.

The correct option is B
Small current for longer duration is preferred

During electroplating a small current passage for a longer time is preferred over high current for a shorter period,to get a uniform and smooth coating of superior metal.