Part c) The supply frequency is returned to its previous value and the load from part b) is replaced with another and the measured voltage and current characteristics are shown in

Figure 2. Explain what kind of load this is and calculate its impedance. (15%) The frequency of supply is again slowly increased to double the value of that shown in Figure 2, with the voltage magnitude is held constant. Produce a graph showing how I and Z vary as the frequency increases. (15%)