A parallel plate capacitor of area 10cm2 in vacuum has a capacitance of 10-2(mu)F. What is the distance between the plates?(e = 9 x 10-12fm)
-
A.
9 x 10-13m -
B.
9 x 10-7m -
C.
9 x 10-3m -
D.
9 x 107m
Correct Answer: Option B
Explanation
C = (frac {varepsilon_o A}{d})
10-2 x 10-6 = (frac {9 times 10 ^{-12}}{d}) x 10-4
= 9 x 10-7m