A) \[E\propto \frac{1}{{{r}^{2}}}\]
B) \[E\propto \frac{1}{r}\]
C) \[E\propto {{r}^{2}}\]
D) \[E\propto r\]
Correct Answer: A
Solution :
Electric field due to outer plate is zero and so the electric field due to inner cylindrical charged conductor varies inversely as the 1 distance from the axis.
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