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Electrostatics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectrostatics1 Mark
MCQ
A parallel plate capacitor has capacitance $C.$ If it is equally filled with parallel layers of materials of dielectric constants $K_1$ and $K_2$ its capacity becomes $C_1$. The ratio of $C_1$ to $C $ is
  • A
    $K _1+ K _2$
  • B
    $\frac{K_1 K_2}{K_1- K _2}$
  • C
    $\frac{K_1+ K _2}{K_1 K_2}$
  • ✓
    $\frac{2 K_1 K_2}{K_1+ K _2}$
✓

Answer

Correct option: D.
$\frac{2 K_1 K_2}{K_1+ K _2}$
$\frac{2 K_1 K_2}{K_1+ K _2}$

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