A square parallel plate capacitor (length of each side = x) with plate separation d and a circular parallel plate capacitor (diameter = x and separation d) are both filled with the same dielectric material (k = 3.8). Which of the capacitors have a larger capacitance? Explain your answer. Given that the length of the square plates is 1.65 m, determine the k for the dielectric that must be inserted into the circular capacitor so that equal capacitance results for each capacitor