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A free pith ball of 8g …

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A free pith ball of 8g carries a +ve charge of 5×10^-8.What must be the nature and magnitude of charge that should be given to second pith ball fixed 5cm vertically below the former pith ball so that the upper pith ball is stationary?

Posted by Amandeep Singh 8 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Sarthak Singh 8 years, 3 months ago

We sould take the force acting on the second ball in equilibrium equals to weight of the ball ... i.e F=mg where F is electrostatic forc ... I can tell the nature of charge that is -ve ... but the force in magnitude ... u cam calc. With the above tip ...

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