(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The plates of a spherical capacitor have radii 31.0 mm and 43.0 mm.

What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance of 12.4pF

2. Relevant equations

C=(epsilon*A)/d

3. The attempt at a solution

12.4*10^-12=(8.85*10^-12*A)/(.012m)

so A=.0168m^2=1.68cm^2, which is incorrect?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Area of parallel plat capacitor

**Physics Forums | Science Articles, Homework Help, Discussion**