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Electrostatics

Charge Q is applied to a circular disk of ebonite of radius a by rubbing it while it is rotating. In this way, the surface charge density becomes proportional to the radial distance from the centre. Show that the electric field strength on the axis of the disk at an axial distance h from the centre is given by

hyder ali

14 Years agoGrade

2 Answers

Sher Mohammad

12 Years ago

Use the simple basic laws of electrostatic, like gauss, law use it on a very small element and then integrate all over.

sher mohammad

b.tech, iit delhi

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Thushara

9 Years ago

Charge Q is applied to a circular disk of ebonite of radius a by rubbing it while it is rotating. In
this way the surface charge density becomes proportional to the radial distance from the
center. Show that the electric field strength on the axis of the disk at an axial distance ℎ from

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