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.

Question

Vikas TU · Answer

Dear student For coulombic force to be maximum . Take dF/dt =0 HHope this will clear your doubt . Good Luck Cheers

Arun · Answer

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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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.

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.

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