A source potential difference | CAPACITANCE| JEE-MAIN- 2022

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JEE MAIN 2022

26.07.2022_S2

Question

A source of potential difference V is connected to the combination of two identical capacitors as shown in the figure. When key ' K ' is closed, the total energy stored across the combination is $\mathrm{E}_1$. Now key ' K ' is opened and dielectric of dielectric constant 5 is introduced between the plates of the capacitors. The total energy stored across the combination is now $\mathrm{E}_2$. The ratio $\mathrm{E}_1 / \mathrm{E}_2$ will be

Select the correct option:

A

$\frac{1}{10}$

B

$\frac{2}{5}$

C

$\frac{5}{13}$

D

$\frac{5}{26}$

✓ Correct! Well done.

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Solution

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