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Parallel conducting tracks, separated by 2.2 cm, run north and south (the figure

ID: 2003929 • Letter: P

Question

Parallel conducting tracks, separated by 2.2 cm, run north and south (the figure below). There is a uniform magnetic field of 1.8 T pointing upward (out of the page). A 0.050-kg cylindrical metal rod is placed across the tracks and a battery is connected between the tracks, with its positive terminal connected to the east track. If the current through the rod is 3.40 A, find the magnitude and direction of the magnetic force on the rod.

2.............

magnitude 1 N direction

2.............

Parallel conducting tracks, separated by 2.2 cm, run north and south (the figure below). There is a uniform magnetic field of 1.8 T pointing upward (out of the page). A 0.050-kg cylindrical metal rod is placed across the tracks and a battery is connected between the tracks, with its positive terminal connected to the east track. If the current through the rod is 3.40 A, find the magnitude and direction of the magnetic force on the rod. magnitude N direction

Explanation / Answer

Given that the length of rod is L = 2.2 cm = 0.022 m
Magnitude of magnetic field is B = 1.8 T
Current through the rod is I = 3.40 A
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The force on the rod is F = BIL
F = (1.8 T)(3.40A)(0.022 m)
F = 0.13464 N


F 0.13 N

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