Free JEE ADV-13 Course
Two unlike charges separated by a distance of 1m attract each other with a force 0.108N. If the charges are in the ratio 1:3, the weak charge is?A. 2 micro C ,B. 4 micro C, C. 6 micro C, D. 5 microC
we know F=k(q1q2)/(r2)
therefore the weak charge is 2micro C.
i think it is 2 microC
let charges be x,3x;
f=3x*x*9*10^9 =>x= 2 micro
The answer is 4 micro C. But it could be wrong.