The bent wire circuit shown in the figure (Figure 1) is in a region of space wit

Question

The bent wire circuit shown in the figure (Figure 1) is in a region of space with a uniform magnetic field in the +z direction. Current flows through the circuit in the direction indicated. Note that segments 2 and 5 are oriented parallel to the z axis; the other pieces are parallel to either the x or y axis.

Part A) Determine the direction of the magnetic force along segment 1, which carries current in the -x direction.

Part B) Determine the direction of the magnetic force along segment 2, which carries current in the -z direction.

Part C) Determine the direction of the magnetic force along segment 3, which carries current in the +y direction.

Part D) Determine the direction of the magnetic force along segment 4, which carries current in the +x direction.

Part E) Determine the direction of the magnetic force along segment 5, which carries current in the +z direction.

Part F) Determine the direction of the magnetic force along segment 6, which carries current in the +x direction.

Part G) Determine the direction of the magnetic force along segment 7, which carries current in the -y direction.

Explanation / Answer

F = I X B
This vector cross-product equation implies that when I is rotated toward alignment with B, it makes a clockwise rotation about F. The direction of F can be visualized by remembering this, or one of the many right-hand rule mnemonics can be used if you prefer.
1: +y
2: 0
3: +x
4: -y
5: 0
6: -y
7: -x

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