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Two small charged sphere contain charges …

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Two small charged sphere contain charges +q1 and +q2 respectively. A charge dq is removed from sphere carrying charge q1 and is transferred to the other. Find charge on each sphere for maximum electric force between them.

Posted by Suman Kanjilal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Harsh Kumar 7 years, 6 months ago

After transfer of charge dq you charge on sphere one will be q1 - Dq and charge on second square will be q2+dq so after that we have to find the coulomb force between the two squares and that is f=[(K q1- DQ )(q2+DQ)] / r². so after that we will differentiate both sides and the force will be maximum when differentiation of F is equal to zero so after that we will get 0=K(q1-q2-2dq)/r² so finally after that we have to find the value of DQ then we will substitute the value of DQ in the above equation then after that we will find Q1 and Q2 charges that's what we have to do in this question

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