Homework Help: Physics

Posted by Anonymous on Monday, February 25, 2013 at 5:03pm.

A long, straight wire carrying a current of 317 A is placed in a uniform magnetic field that has a magnitude of 7.69 × 10-3 T. The wire is perpendicular to the field. Find a point in space where the net magnetic field is zero. Locate this point by specifying its perpendicular distance from the wire.

Physics - Elena, Monday, February 25, 2013 at 5:20pm
I=317 A
B=7.69•10⁻³ T

B(wire)=B
B(wire)=μ₀I/2πa =B
a= μ₀I/2πB=
=4π•10⁻⁷•317/2π•7.69•10⁻³=8.24•10⁻³ m

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