Question: Two flat copper sheets (each 1.5 mm thick) are being spot welded with a current of 7000 A and a current flow time of 0.3

Two flat copper sheets (each 1.5 mm thick) are being spot welded with a current of 7000 A and a current flow time of 0.3 s. The electrodes are 5 mm in diameter. Estimate the heat generated in the weld zone. Assume that the resistance is 200 ((?

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