Question on: JAMB Physics - 1998
A parallel plate capacitor has a common plate area of 5 x 10-8m2 and plate separation of 2 x 103m, Assuming free space, What is the capacitance? [(\varepsilon)o = 9.0 X 10-12C2N-1m-2]
A
2.25 x 10-17F
B
4.50 x 10-17F
C
2.25 x 10-16F
D
4.50 x 10-16F
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Correct Option: C
C = (\frac{{\varepsilon}_oA}{d})
= (\frac{5{\times} 10^{-8} {\times} 10^{-12}{\times} 9}{2 {\times}10^{-3}})
= 22.5 x 10-17F
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