One long wire carries a current of 30 A along the entire x axis.A second long wire carries a current of 40 A perpendicular to the xy plane and passes through the point (0,4,0)m.What is the magnitude of the resulting magnetic field at the point y = 2.0 m on the y axis?
A)4.0 $\mu$T
B)5.0 $\mu$T
C)3.0 $\mu$T
D)7.0$\mu$T
E)1.0 $\mu$T

Question

Quizplus · Accepted Answer

The magnetic field due to a long straight wire is given by B = (μ₀I)/(2πr). For the wire along the x-axis, r = 2 m and I = 30 A. For the wire through (0,4,0), r = 2 m and I = 40 A. Calculate each field and use vector addition to find the resultant field.

One Long Wire Carries a Current of 30 a Along μ\muμ

One Long Wire Carries a Current of 30 a Along $\mu$