A pair of long, parallel wires, wire 1 and wire 2, are carrying currents 1₁ and 12 respectively. The vector force per unit length of wire 1 on wire 2 is fo. If the distance between them is changed by a factor of 0.7 and the current in one of the wires wires is reversed and changes in magnitude by a factor of 2, what is the new force per unit length, fnew, in terms of the original force per unit length, fo? Supply the missing numerical factor below. fnew _)fo
A pair of long, parallel wires, wire 1 and wire 2, are carrying currents 1₁ and 12 respectively. The vector force per unit length of wire 1 on wire 2 is fo. If the distance between them is changed by a factor of 0.7 and the current in one of the wires wires is reversed and changes in magnitude by a factor of 2, what is the new force per unit length, fnew, in terms of the original force per unit length, fo? Supply the missing numerical factor below. fnew _)fo
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Transcribed Image Text:A pair of long, parallel wires, wire 1 and wire 2, are carrying currents 1₁ and 12 respectively. The vector
force per unit length of wire 1 on wire 2 is fo. If the distance between them is changed by a factor of
0.7 and the current in one of the wires wires is reversed and changes in magnitude by a factor of 2,
what is the new force per unit length, fnew, in terms of the original force per unit length, fo? Supply
the missing numerical factor below.
fnew = C
_)fo
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