5. Apoint charge \( q _{1}=4 q _{0} \) is placed at origin. Another point charge \( q _{1}=- q _{0} \) is placed at \( x =12 cm \). Charge of proton is \( q _{0} \). The proton is placed on \( x \)-axis so that the electrostatic force on the proton is zero. In this situation, the position of the proton from the origin is \( cm \).
[Jan. 29, 2023 (I)]
