29. Sources of Magnetic Field
Magnetic Force Between Parallel Currents
Multiple Choice
Multiple ChoiceTwo very long wires of unknown lengths are a parallel distance of 2 m from each other. If both wires have 3 A of current flowing through them in the same direction, what must the force per unit length on each wire be?
BONUS:Is the mutual force between the wires attractive or repulsive?
A
3.6×10−5 N/m
B
3.0×10−7 N/m
C
9.0×10−7 N/m
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