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The figure above shows a metal bar that is supported by two sections of a. fixed, conducting U-shaped horizontal rail. The rod and rail are located in a region of magnetic field B directed into the page. The bar is moving to the right at a constant speed. Which of the following is true of the horizontal forces acting on the bar? * X X X X X X X X X X₁ X There are no forces. X X X X X Top View X X XX X X X X There is only a magnetic force. There is only an external applied force. There is both a magnetic force and an external applied force. Nothing can be said about the forces without knowing the magnitude of the magnetic field.

The figure above shows a metal bar that is supported by two sections of a. fixed, conducting U-shaped horizontal rail. The rod and rail are located in a region of magnetic field B directed into the page. The bar is moving to the right at a constant speed. Which of the following is true of the horizontal forces acting on the bar? * X X X X X X X X X X₁ X There are no forces. X X X X X Top View X X XX X X X X There is only a magnetic force. There is only an external applied force. There is both a magnetic force and an external applied force. Nothing can be said about the forces without knowing the magnitude of the magnetic field.

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The figure above shows a metal bar that is supported by two sections of a fixed, conducting U-shaped horizontal rail. The rod and rail are located in a region of magnetic field B directed into the page. The bar is moving to the right at a constant speed. Which of the following is true of the horizontal forces acting on the bar? * X X X X X X₁ X X X X X X X X X X Top View There are no forces. X X XX X X X X There is only a magnetic force. There is only an external applied force. There is both a magnetic force and an external applied force. Nothing can be said about the forces without knowing the magnitude of the magnetic field.
Transcribed Image Text:The figure above shows a metal bar that is supported by two sections of a fixed, conducting U-shaped horizontal rail. The rod and rail are located in a region of magnetic field B directed into the page. The bar is moving to the right at a constant speed. Which of the following is true of the horizontal forces acting on the bar? * X X X X X X₁ X X X X X X X X X X Top View There are no forces. X X XX X X X X There is only a magnetic force. There is only an external applied force. There is both a magnetic force and an external applied force. Nothing can be said about the forces without knowing the magnitude of the magnetic field.
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