An air capacitor is made by using two flat plates, each with area A, separated by a distance d. Then a metal slab having thickness a (less than d) and the same shape and size as the plates is inserted between them, parallel to the plates and not touching either plate (Figure 1). Part A What is the capacitance of this arrangement? Express your answer in terms of the variables A, a, d, and constant €0. C = ΜΕ ΑΣΦ Submit Request Answer Part B igure 1 of 1 ? Express the capacitance as a multiple of the capacitance Co when the metal slab is not present.

An air capacitor is made by using two flat plates, each with area A, separated by a distance d. Then a metal slab having thickness a (less than d) and the same shape and size as the plates is inserted between them, parallel to the plates and not touching either plate (Figure 1). Part A What is the capacitance of this arrangement? Express your answer in terms of the variables A, a, d, and constant €0. C = ΜΕ ΑΣΦ Submit Request Answer Part B igure 1 of 1 ? Express the capacitance as a multiple of the capacitance Co when the metal slab is not present.