Net magnetic force in unit-vector notation

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Mike88
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Homework Statement


The bent wire shown in the figure below lies in a uniform magnetic field. Each straight section is 2.0 m long and makes an angle of θ = 65° with the x axis, and the wire carries a current of 2.0 A.
Diagram of a V-shaped bent wire with its vertex on the x axis, each arm making angle θ with the x axis and carrying current i in the direction shown by arrows, with the y axis drawn vertically.


(a) What is the net magnetic force on the wire in unit-vector notation if the magnetic field is 4.0k^T?
magnitude [answer] N , direction [ ]

Homework Equations


FB = iLBsin(phi)

The Attempt at a Solution


given i = 2A, L = 2m, B=4kT sin(θ) = 65° i got 2*2*4*sin(65) = 14.5 * 2 for other wire = 29N
 
Last edited:
Mike88 said:

Homework Equations


FB = iLBsin(phi)
This gives you the magnitude of the force on the wire segment. Note that phi is the angle between iL and B. What direction is the B field?

What's the direction of the magnetic force on the wire segment? (Use the right hand rule.)