Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assumi

Question

Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance to be 200 μm and current flow time of 0.2 second, heat generated during the process will be

Options:

A . 0.2 Joule

B . 1 Joule

C . 5 Joule

D . 1000 Joule

Answer: Option D

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