An infinite plane sheet of positive charge has surface charge density sigma.A metallic ball of mass m and charge +Q is attached to a point and tied to thread A on the sheet PQ.What is the angle theta made by the string with the plane sheet ?

Question

Saurabh Kumar · Answer

Force exp by positive charge due to electric field of sheet.
Draw the diagram for the static equilibrium condition, write the force equations along horizontal and vertical and proceed...

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An infinite plane sheet of positive charge has surface charge density sigma.A metallic ball of mass m and charge +Q is attached to a point and tied to thread A on the sheet PQ.What is the angle theta made by the string with the plane sheet ?

An infinite plane sheet of positive charge has surface charge density sigma.A metallic ball of mass m and charge +Q is attached to a point and tied to thread A on the sheet PQ.What is the angle theta made by the string with the plane sheet ?

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