Question

A 0.150m wire carries a constant current of 12.5A. The angle between the direction of the current and that of the magnetic field is 25 degrees as show. If the magnetic field strength is 0.625 T, what is the magnetic force on the wire? a) 0.990 N, out of the page b) 0.742 N, into the page c) 0.495 N, out of the page d) 0.990 N, into the page e) 0.495 N, into the page

Answer 1

Answer is c) 0.495 N, out of the page

The Magnetic force on the wire is given by

F=BILSino

F=0.625*12.5*0.15*Sin25

F=0.495 N

From Right hand rule ,the direction is out of page