A vertical straight wire carrying an upward 26 A current exerts an attractive force per unit...
Homework Answers
Force per unit length = F / L =
μ0I1I2 / 2πr.
I2 = (F / L)(2πr / μ0I1)
= [(9.0 x 10^-4 N) x ((2π x 0.09 m) / ((4π x 10^-7 Tm/A) x 26
A))
= 15.57 A
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