GATE IN 2024 | Question: 10

Question

• A.
• B.
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The capacitance formed between two concentric spherical metal shells having radii $x$ and $y$ with $y>x$ is

Note: $\epsilon$ is the permittivity of the medium between the shells.

$4 \pi \epsilon\left(\frac{x y}{y-x}\right)$

$4 \pi \epsilon\left(\frac{x^{2}}{y-x}\right)$

$4 \pi \epsilon\left(\frac{y^{2}}{y-x}\right)$

$4 \pi \epsilon\left(\frac{y^{2}-x y}{x}\right)$