Question: When a potential difference of 188 V is ap- plied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of magnitude 43 nC/cm2. The value of the permittivity of a vacuum is 8.8542 × 1012 C2/N•m2.
Part A: What is the spacing between the plates?
Answer in units of m.
Please explain clearly with details so that I can follow.