Asked by B.Y.SARAT
2 PARTICLES [FREE TO MOVE] WITH CHARGES +q and +4q are a distance L APART. A 3RD CHARGE IS PLACED SO THAT THE ENTIRE SYSTEM IS IN EQ2UILIBRIUM.FIND THE LOCATION,MAGNITUDE AND SIGN OF THE 3RD CHARGE
Answers
Answered by
drwls
The third charge must be placed between the q and 4q charges, so that there are equal and opposite forces along the line between the charges. The distance from the q charge must be half the distance from the 4q charge, so that Q/d^2 is the same for both.
Therefore, the third charge must be 1/3 of the way from q to 4q. That will be L/3 from charge q.
Therefore, the third charge must be 1/3 of the way from q to 4q. That will be L/3 from charge q.
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