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Grade: 12

                        

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 ?

5 years ago

Answers : (1)

Saurabh Kumar
askIITians Faculty
2411 Points
							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...

Good Luck......
5 years ago
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