A parallel-plate capacitor has a capacitance of c1 = 5.5 ?F when filled with air and c2 = 33 ?F when filled with a dielectric oil at potential difference of 12 V. Take the vacuum permittivity to be ?o = 8.85 × 10-12 C2/(N?m2).
Part (a) Input an expression for the permittivity of the oil?.
Part (b) What is the permittivity of this oil in C2/(N?m2)?
Part (c) How much more charge ?q in C does the capacitor hold when filled with oil relative to when it's filled with air?