State Gauss law and derive it from electric field intensity.
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State Gauss law and derive it from electric field intensity.
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- State Gauss’s law in electrostatics. Derive an expression for the electric field due to an infinitely long straight uniformly charged wire.Sketch the electric field lines a long distance from the charge distributions shown in (a) and (b)Consider a point charge Q, use Gauss' Law to show that the electric field at a distance r from the charge is given by E = kQ p2
- Calculate the electric field that is necessary to balance the gravitational force on an electron on the surface of the Earth.Consider two electrons that lie along the y axis. What is the direction of the electric field vector at a point on the y axis above the electrons?Find the electric field at location P in the image: