Please could someone show me how to do this?   In addition to series combination of complex loads it is also important to analyse the behaviour of power  supply with complex loads in parallel. To demonstrate this, you are tasked to complete the following: i. For the circuit shown in figure 4 below, it is required to transfer maximum power to a load of  impedance, ZL Ω. Determine the required value of the load impedance and the value of the  maximum power delivered to the load under the following conditions: (a) ZL = R ± jX Ω , [variable R and X] (b) ZL = R Ω [variable R]

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Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.