29. Sources of Magnetic Field
Magnetic Force Between Parallel Currents
11:07 minutes
Problem 28.57
Textbook Question
Textbook QuestionIn Fig. 28–57 the top wire is 1.00-mm-diameter copper wire and is suspended in air due to the two magnetic forces from the bottom two wires. The current is 35.0 A in each of the two bottom wires. Calculate the required current in the suspended wire (M).
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