Question

The capacitance of cylindrical capacitors depends upon length $L$ of capacitor as-

• A. $L$
• B. $L_2$
• C. $1/L$
• D. None of these

Answer 1

The correct option is A $L$

The capacitance of a cylindrical capacitor of length $L$ is given by:

$C=\frac{2\pi {\epsilon }_{0}L}{lo{g}_{e}b-lo{g}_{e}a}$

where $a=$ inner radius of cylinder

$b=$ outer radius of cylinder

We can see that capacitance $C$ dependS upon $L$ as $C\propto L$.