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| Q.57 | Two steel sheets of 2 mm thickness are to be spot welded at a current of 6000 A. Assuming effective resistance to be 150 × 10-6 ohms and current flow time of 0.2 second. What will be the heat generated during the process? | |
| Ans | 1. 980 Joules | |
| 2. 1300 Joules | ||
| 3. 1080 Joules | ||
| 4. 1180 Joules |
Correct Ans: 3
