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Capacitor question

2020 · 8 Jan · Shift 2 · Q37
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Capacitor question

2020 · 8 Jan · Shift 2 · Q37

JEE MainPhysicsCapacitorMCQ+4 / −1
A capacitor is made of two square plates each of side 'a' making a very small angle α\alphaα between them, as shown in figure. The capacitance will be close to : JEE Main 2020 (Online) 8th January Evening Slot Physics - Capacitor Question 109 English
  1. A
    ε0a2d(1+αad){{{\varepsilon _0}{a^2}} \over d}\left( {1 + {{\alpha a} \over {d}}} \right)dε0​a2​(1+dαa​)
  2. B
    ε0a2d(1−αa4d){{{\varepsilon _0}{a^2}} \over d}\left( {1 - {{\alpha a} \over {4d}}} \right)dε0​a2​(1−4dαa​)
  3. C
    ε0a2d(1−αa2d){{{\varepsilon _0}{a^2}} \over d}\left( {1 - {{\alpha a} \over {2d}}} \right)dε0​a2​(1−2dαa​)
  4. D
    ε0a2d(1−3αa2d){{{\varepsilon _0}{a^2}} \over d}\left( {1 - {{3\alpha a} \over {2d}}} \right)dε0​a2​(1−2d3αa​)
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