Question

The charge stored in a capacitor is $20\mu C$ and the potential difference across the plates is 500 V. Its capacity is :

• A. $0.04\mu F$
• B. ${10}^{-2}\mu F$
• C. $2\times {10}^{-6}\mu F$
• D. $250\mu F$

Answer 1

The correct option is A $0.04\mu F$

We know,
$Q=CV$
$\Rightarrow 20\times {10}^{-6}=C\times 500$
$\Rightarrow c=\frac{2}{50}\times {10}^{-6}$
$\Rightarrow c=0.04\times {10}^{-6}F$