Question

1. Redraw the circuit shown in Figure 1 so that it looks like the circuit shown in Figure 2. The functionality of both circuits must be identical. This means that the voltage drop across RL should be the same in both circuits and that the current flowing through Ri should be the same in both circuits Hence, express Vth and Rth in terms of Vo and Ri, R2. Figure 2 is called the Thévinin equivalent of Figure 1 and the general technique is used to reduce a potentially very complex circuit into a simpler one. R1 R th V_th R2 R_L RL Figure 1: Original circuit. Figure 2: Thévenin equivalent circuit.

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