Question

A wire lying along a y axis from y = 0 to y =0.386 m carries a current of 3.65 mA in the negative direction of the axis. The wire fully lies in a nonuniform magnetic field given by

B = (0.388T/m)y i + (0.450) T/m)y j. What are the (a) x (b) y and (c) z components of the magnetic force on the wire.

Answer 1

I = 3.65 mA = 0.00365 A

The magnetic force is the cross product of the current direction and magnetic field. The current direction is along the -ve Y axis. The magnetic field is along X and Y axis. Therefore the magnetic force is only along Z axis. Therefore

a) x component of the force = 0 N

b) y component is = 0 N

c) z component is

or