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A beam of proton projected towards +x axis and experience a magnetic force on -y axisFind directions of magnetic field

A beam of proton projected towards +x axis and experience a magnetic force on -y axisFind directions of magnetic field

Grade:12

1 Answers

Arun
25750 Points
6 years ago
Using the right hand screw rule of cross product we can determine the direction of B.
v is along +X axis
F is along -Y axis
F = q ( V X B)
B must be along Z axis, but -Z or +Z?
If B is along +Z axis, then only will the direction of F (v cross B) will be along -Y axis:
Thus, as F is along -Y, B must be along +Z axis.

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