railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Joining Welding
Two steel sheets of 1.0 mm thick are resistance welded in a lap joint with a current of 10,000 A for 0.1 second. The effective resistance of the joint can be taken as 100 μΩ. How much will be the heat supplied?
1
100 J
2
1000 J
3
100 kJ
4
1,000 kJ