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CGP EDU Academic Team
Published on: September 12, 2026
The respective radii of the two spheres of a spherical condenser are 12 cm and $9 \text{ cm}$ . The dielectric constant of the medium between them is 6. The capacity of the condenser will be
Text Solution
Verified by ExpertsThe correct answer is:
A
$C = 4 \pi \varepsilon_0 K \left[ \frac{ab}{b - a} \right] = \frac{1}{9 \times 10^9} \cdot 6 \left[ \frac{12 \times 9 \times 10^{-4}}{3 \times 10^{-2}} \right]$
$=24 \times 10^{-11} = 240 pF$
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