A) 2
B) 4
C) 6
D) 8
Correct Answer: B
Solution :
(b) 4 \[C=\frac{{{\varepsilon }_{0}}A}{d}=1pF\] (1) \[C'=\frac{x{{\varepsilon }_{0}}A}{\left( 2d \right)}=2pF\] (2) Dividing eq. (2) by eq. (1), \[\frac{x}{2}=\frac{2}{1}\Rightarrow x=4\]You need to login to perform this action.
You will be redirected in
3 sec