The unit of current, the ampere, is defined in terms of
Chapter 24, Problem 32P(choose chapter or problem)
Problem 32P
The unit of current, the ampere, is defined in terms of the force between currents. If two 1.0-meter-long sections of very long wires a distance 1.0 m apart each carry a current of 1.0 A, what is the force between them? (If the force between two actual wires has this value, the current is defined to be exactly 1 A.)
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