Question

A straight copper wire lies along the x-axis and has current of I=15.6 A running through it in the +x-direction. The wire is in the presence of a uniform magnetic field, perpendicular to the current. There is a magnetic force per unit length on the wire of 0.117 N / m in the -y-direction.

(a) What is the magnitude of the magnetic field (in mT ) in the region through which the current passes?

(b) What is the direction of the magnetic field in the region through which the current passes?

• +x-direction

• -x-direction

• +y-direction

• -y-direction

• +z-direction

• -z-direction

Answer 1