In Figure two tiny conducting balls of identical mass m and identical charge q hang from non conducting threads of length L Assume that is so small that tan can be replaced by its approximate equal, sin (a) Show that x (q2L 20mg) 1 3 gives the equilibrium separation r of the balls (b) If L 120cm, m...

a A force diagram for one of the balls is shown on the right The force of gravity mg acts downward t ...

In Figure two tiny conducting balls of identical mass m and identical charge q hang from non-conducting

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In Figure two tiny conducting balls of identical mass m and identical charge q hang from non-conducting threads of length L. Assume that θ is so small that tan θ can be replaced by its approximate equal, sin θ.

(a) Show that x = (q2L/2πε0mg) 1/3 gives the equilibrium separation r of the balls.

(b) If L = 120cm, m = 10 g, and x = 5.0 cm, what is |q|?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Jan 19, 2011 05:57 AM

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In Figure two tiny conducting balls of identical mass m and identical charge q hang from non-conducting

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Fundamentals of Physics

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