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Two metal balls with radii `r_(1)=1 cm` and `r_(2)=2cm` at a large distance R=100 cm from each other, are connected to a battery of emf `epsi=3000 V` Find the of interactio betwenn the balls. What is the signification of the ward large?

Answer» Correct Answer - `epsi^(2)((r_(1)r_(2))/(r_(1)+r_(2)))^(2)/(R^(2))=4.4xx10^(-8)N;` since the distance is large, charge is assumed to be unifromly distribuited


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