A particle of mass 1 Kg carrying 0.01C charge is at rest on an inclined plane of angle 300 with the horizontal when an electric field of 490√3NC−1 is applied parallel to the horizontal as shown. The coefficient of friction is :
0.5
√32
1√3
√37
A
1√3
B
0.5
C
√32
D
√37
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Solution
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For the body to be at rest on the incline, all the forces acting on it should balance out each other.
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