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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
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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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Q1
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 :
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Q3
A particle of mass 1kg and carrying positive charge 0.01 C is sliding down an inclined plane of angle 300with the horizontal. An electric field E is applied to stop the particle. If the coefficient of friction between the particle an the surface of the plane is12√3, E must be:
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Q5
An inclined plane making an angle of 30∘ with the horizontal is placed in a uniform horizontal electric field 200 N/C as shown in the figure. A body of mass 1 kg and charge 5 mC is allowed to slide down from rest from a height of 1 m. If the coefficient of friction is 0.2, find the time taken by the body to reach the bottom.
[g=9.8 m/s2; sin30∘=12; cos30∘=√32]
[g=9.8 m/s2; sin30∘=12; cos30∘=√32]
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