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
Verified Correct Answer: B.
Physical Principles & Numerical Solution
C = \(\frac {\varepsilon_o\ A}{d}\)
10-2 x 10-6 = \(\frac {9 \times 10 ^{-12}}{d}\) x 10-4
= 9 x 10-7m
Source: Myschool Past Questions Archive (Record #28015)