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A pith ball covered with tin foil having a mass of m kg hangs by a fine silk thread l metre long in an electric field E . When the ball is given an electric charge of q coulomb it stands out d metre from the vertical line. Show that the elevelecfield is given by E= mgd÷(l^2-d^3)^1/2

A pith ball covered with tin foil having a mass of m kg hangs by a fine silk thread l metre long in an electric field E . When the ball is given an electric charge of q coulomb it  stands out d metre from the vertical line. Show that the elevelecfield is given by E= mgd÷(l^2-d^3)^1/2
 

Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
2 years ago
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