QUICK QUESTION ...

• A current I flows in a wire which is formed in the shape of an isosceles triangle as shown. A constant magnetic field exists in the -z direction.

  • What is Fy, net force on the wire in the y-direction?

(a) Fy < 0

(b) Fy = 0

(c) Fy > 0

x

y

• From symmetry, Fx = 0

• For the y-component:

• Therefore:

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