Question

A 295-m length of wire stretches between two towers and carries a 180-A current. Determine the magnitude of the force on the wire due to the Earth's magnetic field of 5.0 x 10-5 T which makes an angle of 62 with the wire. Express your answer to two significant figures and include the appropriate units. НА ? F= Value Units

Answer 1

The force on the wire, F = B * I * L * sin$\theta$
Where B is the magnetic field, I is current, L is the length of the wire and $\theta$ is the angle between the magnetic field and the current.
Substituting values,
F = (5 * 10^-5) * 180 * 295 * sin(62)
= 2.34 N