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Homework Statement
A high voltage power line carries a current of 110 A at a location where the Earth's magnetic field has a magnitude of .59 G and points to the north, 72 degrees below the horizontal. find the direction and magnitude of the magnetic force exerted on a 250-m lengh of wire if the current in the wire flows (A) horizontally toward the east (B) horizontally toward the south.
Homework Equations
F= ILB SinX
The Attempt at a Solution
I= 110A B= .59 x 10^(-4) L=250
F= (110)(250)(.59 x 10^(-4))(sin -72)
F= -1.543
Is it correct or not! i need to know the answer. can someone please help me.