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JEE MAIN 2020
08-01-20 S2
Question
A capacitor is made of two square plates each of side 'a' making a very small angle $\alpha$ between them, as shown in figure. The capacitance will be close to
Select the correct option:
A
$\frac{\varepsilon_0 a^2}{d}\left(1-\frac{3 \alpha a}{2 d}\right)$
B
$\frac{\varepsilon_0 a^2}{d}\left(1-\frac{\alpha a}{2 d}\right)$
C
$\frac{\varepsilon_0 \mathrm{a}^2}{\mathrm{~d}}\left(1+\frac{\alpha \mathrm{a}}{\mathrm{d}}\right)$
D
$\frac{\varepsilon_0 a^2}{d}\left(1-\frac{\alpha a}{4 d}\right)$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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