Two 1 mm thick steel steels are to be spot welded at a current of 5000 – McqOptions

MCQOPTIONS

1.	Two 1 mm thick steel steels are to be spot welded at a current of 5000 Amp, assuming effective resistance to be 200 micro-ohms and current flow time of 0.2 sec, heat generated during the process will be
A.	0.2 Joule
B.	1 Joule
C.	5 Joules
D.	1000 Joules
Answer» E.

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