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Grade 11Electric Current

A charge Q is divided into two parts. The two charges kept at a distance apart have a maximum coulombian

repulsion. Then the ratio of Q and one of the parts is given by

(a) 1 : 2 (b) 2 : 1 (c) 1 : 4 (d) 4 : 1

Profile image of jeet jeetu
13 Years agoGrade 11
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1 Answer

Profile image of Anirban Mukherjee
ApprovedApproved Tutor Answer13 Years ago

F=q(Q-q)/x^2

dF/dq =0

Q-2q=0

q=Q/2