Question

A 45-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 67 A and experiences a magnetic force of 0.15 N. Find the magnitude of the earth's magnetic field at the location of the wire, assuming the field makes an angle of 51.5° with respect to the wire.
F=ILBsinα
B=F/ILsinα=0.15/67•45•sin51.5⁰=6.35•10⁻⁵ T

Related Questions

A wire of length 11 cm carries a current of 1.1 A. When the wire is placed so that the current passe... the middle wire carries 2A, and the bottom wire carries 3A. 2A (6 points possible) What is... Three long, thin, co-planar wires are separated by 10cm and arranged as shown. The top wire carries... 9. Figure shows an aluminium wire of length 60 cm joined to a steel wire of length 80 cm and stretch...