Electrostatics

Related Questions

• In Millikan's oil drop experiment an oil drop carrying a charge Q is held stationary by a potential difference $2400\,V$ between the plates. To keep a drop of half the radius stationary the potential difference had to be made $600\,V$. What is the charge on the second drop

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• The number of electrons to be put on a spherical conductor of radius$0.1\,m$to produce an electric field of $0.036N/C$ just above its surface is

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• An electron of mass ${m_e}$ initially at rest moves through a certain distance in a uniform electric field in time ${t_1}$. A proton of mass ${m_p}$ also initially at rest takes time ${t_2}$ to move through an equal distance in this uniform electric field. Neglecting the effect of gravity, the ratio of ${t_2}/{t_1}$ is nearly equal to

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• Conduction electrons are almost uniformly distributed within a conducting plate. When placed in an electrostatic field $\overrightarrow E $, the electric field within the plate

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• As shown in the figure, charges $+ q$ and $- q$ are placed at the vertices $B$and $C$of an isosceles triangle. The potential at the vertex A is

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