A Thevenin equivalent can also be determined from measurements made at the pair of terminals of interest. Assume the following measurements were made at the terminals a,b in the circuit in the figure.

When a 20 Ohm resistor is connected to terminals a,b the voltage Vab is measured and found to be 150 V.

When a 50 Ohm resistor is connected to the terminals a,b the voltage is measired and found to be 186 V.

Part A) Find the equivalent voltage (Vth= ?)

Part B) Find the equivalent resistance (Rth= ?)

Linear resistive network with independent and dependent sources a b