Node Voltages and Equivalent Circuits

A. Determine IL by the node voltage technique. Choose the ground node wisely.

B. Determine the Thevenin equivalent circuit at nodes x and y. (Remember to disconnect RL first.) Use your results to form a Thevenin equivalent network at nodes x and y. What is the Thevenin voltage and resistance?

C. Reconnect RL at nodes x and y, and use the equivalent network to determine IL. Compare yourresults with the node voltage method.

D. Now consider RL to be a variable resistor. What value of RL would be required to achieve the maximum power transfer from the active network at x and y to the load resistor RL?