Two parallel plates of area A are separated by two different dielectric. The net capacitance is ...

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Two parallel plates of area A are separated by two different dielectric. The net capacitance is
(a) \( \frac{\varepsilon_{0} A}{d} \)
(b) \( \frac{7}{20} \frac{\varepsilon_{0} A}{d} \)
(c) \( \frac{20}{7} \frac{\varepsilon_{0} A}{d} \)
(d) \( \frac{2 \varepsilon_{0} A}{d} \)
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