The plates of a spherical capacitor have radii 3.7 cm and 4 cm, with a vacuum in between them.
a.) Find the surface area of the inner and outer spherical plates.
b.) Find an expression for the capacitance in terms of the plate areas (A1 and A2) and their separation (d). Then use it to:
i.) Find the capacitance of this capacitor:
ii.) If you wanted to constructed a parallel plate cap with the same plate separation and capacitance, what should be the area of each of its plates?