Two stiff, 50-cm-long, parallel wires are connected at the
Chapter 29, Problem 29.26(choose chapter or problem)
Two stiff, 50-cm-long, parallel wires are connected at the ends by metal springs. Each spring has an unstretched length of 5.0 cm and a spring constant of 0.025 N/m. The wires push each other apart when a current travels around the loop. How much current is required to stretch the springs to lengths of 6.0 cm?
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