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Two positive point charges a distance b apart have sum Q. For what values of the charges is the Coulomb force between them a maximum? I have understood the question just not able to understand how to maximize q1q2, please tell me.
Dear student For coulombic force to be maximum . Take dF/dt =0 HHope this will clear your doubt .Good Luck Cheers
let parts are sepereted at a distance of dso repulsion force F= k q(Q-q)/d2 here Q and d are constant so for maximum force differentiate the force w.r.t q dF/dq = k/d2 [Q -2q] for maximum force dF/dq=0 Q-2q=0Q/q = 2
let parts are sepereted at a distance of d
so repulsion force F= k q(Q-q)/d2
here Q and d are constant so for maximum force differentiate the force w.r.t q
dF/dq = k/d2 [Q -2q]
for maximum force dF/dq=0
Q-2q=0
Q/q = 2
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