1. A 45-m length of wire is stretched horizontally between two vertical posts. T
ID: 2136137 • Letter: 1
Question
1. A 45-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 68 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 50.0
A 45-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 68 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 50.0 degree with respect to the wire. The x, y, and z components of a magnetic field are Bx = 0.12 T, By = 0.12 T, and Bz = 0.17 T. A 25-cm wire is oriented along the z axis and carries a current of 4.3A. What is the magnitude of the magnetic force that acts on this wire? A wire has a length of 4.20 Times 10-2 m and is used to make a circular coil of one turn. There is a current of 2.10 A in the wire. In the presence of a 2.70-T magnetic field, what is the maximum torque that this coil can experience?Explanation / Answer
Use Algebra.
Let B (T) be the magnitude of the earth's magnetic field at the location of the wire. We have:
F = iLB*sin ?, or
0.16 N = (64 A)*(47m)*B*sin 60.0
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