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Grade: 12th pass 

                        
2 point charges q &4q are located at r1 & r2,respectively,on the x-y plane.The magnitude Q & location R of a third charge to be placed on the plane such that the total force on each charges vanishes are what?
6 years ago

Answers : (1)

Arun Kumar
IIT Delhi
askIITians Faculty
256 Points 
							
assume Q,q are positive.

See direction vectors are in same. 
=> they are collinear.
The big part is done.
Now asssume

Its easier to solve now.
Thanks & Regards
Arun Kumar
IIT Delhi
Askiitians Faculty
6 years ago
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