A) \[+Q/4\]
B) \[-Q/2\]
C) \[+Q/2\]
D) \[-Q/4\]
Correct Answer: D
Solution :
For equilibrium of system of charges force produced between q and Q+ force produced between Q and \[Q=0\] \[\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{qQ}{{{(r/2)}^{2}}}+\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{QQ}{{{r}^{2}}}=0\] \[\Rightarrow \] \[\frac{4qQ}{{{r}^{2}}}+\frac{QQ}{{{r}^{2}}}=0\] \[\Rightarrow \] \[q=-\frac{Q}{4}\]You need to login to perform this action.
You will be redirected in
3 sec