The angle between the wire and the direction of the magnetic field is 180°
For a current-carrying wire, force is the is felt in the presence of an external magnetic field. Using the formula,
F = BILsinӨ, where,
L is the length of the wire
I is the current
Ө is the angle between the current direction and the magnetic field
We know that sin 180° is 0. Therefore, the force exerted on a current-carrying wire that is placed in a magnetic field is zero.