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CGP EDU Academic Team
Published on: September 12, 2026
In a parallel plate condenser, the radius of each circular plate is $12cm$ and the distance between the plates is $5\,m\,m$ . There is a glass slab of 3 m m thick and of radius 12cm with dielectric constant 6 between its plates. The capacity of the condenser will be
Text Solution
Verified by ExpertsThe correct answer is:
C
$C = \frac{\varepsilon_0 A}{d - t + \frac{t}{K}} = \frac{1}{4 \pi \times 9 \times 10^9} \cdot \frac{\pi (0.12)^2}{\left(2 + \frac{1}{2}\right) 10^{-3}}$
$= \frac{2 \times 144 \times 10^{-10}}{36 \times 5} = 160 pF$
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