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8:54 PM Tue Mar 22 a) Build a capacitor (10 points) Choose rectangular 5 cm by 10 cm flat plates; use 2 cm separation between the plates; fill half of the space between the plates with a dielectric 1 cm thick slab with kd = 12. Calculate the capacitance of this device we just described. b) Build a resistor (10 points) Choose a Copper prism with the following dimensions: 4 cm x 5 cm x 40 cm Calculate the resistance of this prism at 200 if the resistivity of the Copper at 200 is 1.68 x 10-8 Qm and the prism will be connected to the circuit as it shown in the picture below. c) (10 points) Calculate the time constant of the circuit that would use Capacitor from part (a) and Resistor from part (b). How long it would take to charge up the capacitor to 70% of its maximum charge? You may need eo = 8.85418782 x 10-12 m-3 kg-l s4 A2 100% 5 6