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DILKHUSH

· started a discussion

· 1 Months ago

option a (Question: 337475.0 )

diffrentially compound dc generator applicable for welding purpose

Question:

Which of the following processes essentially needs direct current?

Options:
A)

Welding

B)

Heating

C)

Refrigeration

D)

Electroplating

Solution:

Ans:(d) Electroplating needs direct current. Electroplating is the process of plating one metal on to another by hydrolysis, most commonly for decorative purposes or to prevent corrosion of a metal.

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