Physics · 2019
JEE Main · 9 January 2019, Shift 1 · Q16
A parallel plate capacitor is made of two square plates of side 'a', separated by a distance d ( d ≪ a ). The lower triangular portion is filled with…
A parallel plate capacitor is made of two square plates of side 'a', separated by a distance $\displaystyle \mathrm{d}(\mathrm{d} \ll \mathrm{a})$. The lower triangular portion is filled with a dielectric of dielectric constant K, as shown in the figure. Capacitance of this capacitor is :
Official answer
(4)
$\displaystyle \frac{K \epsilon_0 \mathrm{a}^2}{\mathrm{~d}(\mathrm{~K}-1)} \ln \mathrm{K}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.