Consider the charge q q mis cuties at the vertices of an equilateral triangle what is the force on a charge
Answers
By using coloumbs law of charge you easily found the force experience by each particle and you easily prove that the vectorial sum of forces on each charges is ‘0’.
But,you were thinking that the resultant forces get ‘0’ due to equilateral arrangement of charges,No that's not,in any arrangements of charges you will get '0′ resultant forces,that sounds very interesting.
Means if you have infinite number of charges (of whatever magnitude or sign) arrange in any configurations you will find that the resultant force is '0′.
The resultant force is zero everytime because of Newton third law of motion:- “every action is equal and opposite reaction”
Due to Newton's third law all forces get cancelled(as you see in the image)
I hope this helps you,in case of any doubt comment below