Answer to Question #34005 in Electric Circuits for zizo

Question

A long, straight wire lies along the y-axis and carries a current I = 7.65 A in the −y-direction (see the following figure). In addition to the magnetic field due to the current in the wire, a uniform magnetic field 0 with magnitude 1.95 10-6 T is in the +x-direction. What is the total field (magnitude and direction) at the following points in the xz-plane.


(a) x = 0, z = 3.00 m


magnitude

T



direction

° from an axis parallel to the +x-direction in the xz plane


(b) x = 3.00 m, z = 0


magnitude

T



direction

° from an axis parallel to the +x-direction in the xz plane


(c) x = 0, z = -0.75 m


magnitude

T



direction

° from an axis parallel to the +x-direction in the xz plane