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Capacitance of Parallel Plate Capacitor

Two square pl...

Question

Two square plates of side 1 m are placed at a separation of 1 mm in vacuum to form a parallel plate capacitor. Its capacitance is?

A

9nF

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B

90nF

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C

900nF

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D

0.9 nF

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Solution

The correct option is A 9nF
Direct application of formula.
$C = \frac{8.854 \times 10^{- 12} \times 1 \times 1}{10^{- 3}} C ≅ 9 n F$

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