Question

Two capacitors $C_{1}$ and $C_{2}$ are charged to $\text{120 V}$ and $\text{200 V}$ , respectively. It is observed that by connecting them together, the potential on each one can be made zero. Then select the correct relation.

• A. $3C_{1}+5C_{2}=0$
• B. $9C_{1}=4C_{2}$
• C. $5C_{1}=3C_{2}$
• D. $3C_{1}=5C_{2}$

Answer 1

Answer: (D)

For potential to be made zero, after connection
$\text{120C}_{1} = \text{200C}_{2}$
$\Rightarrow 3 \text{C}_{1} = 5 \text{C}_{2}$