A current i runs counterclockwise along the perimeter of an equilateral triangle whose sides are length a. The the triangle lies flat on the horizontal page. A uniform magnetic field, B, points out of the page. (a) Draw a diagram showing the current, the field, and the force on each side of the triangle. (b) Find the magnitude of the force on each side and the net force on the entire triangular loop. Do NOT just state that the net force is zero (it is!) SHOW that it is zero by adding the forces on the sides as vectors. (c) Find an expression for the dipole moment of the loop of current and its direction.
A current i runs counterclockwise along the perimeter of an equilateral triangle whose sides are length a. The the triangle lies flat on the horizontal page. A uniform magnetic field, B, points out of the page. (a) Draw a diagram showing the current, the field, and the force on each side of the triangle. (b) Find the magnitude of the force on each side and the net force on the entire triangular loop. Do NOT just state that the net force is zero (it is!) SHOW that it is zero by adding the forces on the sides as vectors. (c) Find an expression for the dipole moment of the loop of current and its direction.
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