Question on: JAMB Physics - 1993
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
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Correct Option: B
Here's how to solve this problem:
1. **Recall the formula for capacitance:** The capacitance (C) of a parallel plate capacitor is given by:
C = ε₀ * A / d
where:
* ε₀ is the permittivity of free space (8.85 x 10⁻¹² F/m, but the question provided 9 x 10⁻¹² which will be used for simplicity.)
* A is the area of the plates.
* d is the distance between the plates.
2. **Rearrange the formula to solve for distance (d):**
d = ε₀ * A / C
3. **Convert the given values to standard units:**
* A =
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