A) 4 F
B) 2 F
C) F
D) F/2
Correct Answer: D
Solution :
The force between charged spheres is given by \[F=\frac{1}{4\pi {{\varepsilon }_{0}}}.\frac{{{q}_{1}}{{q}_{2}}}{{{r}^{2}}}\] and \[{{F}_{K}}=\frac{1}{K.4\pi {{\varepsilon }_{0}}}.\frac{{{q}_{1}}{{q}_{2}}}{{{r}^{2}}}=\frac{F}{K}=\frac{F}{2}\]You need to login to perform this action.
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