Final answer:
To find the Thevenin equivalent circuit between nodes a and b, calculate the Thevenin impedance and voltage. The values A and B for the Thevenin impedance cannot be determined without specific values for R and L.
Step-by-step explanation:
The Thevenin equivalent circuit between nodes a and b can be found by calculating the Thevenin impedance and the Thevenin voltage. The Thevenin impedance (Zth) is equal to the series combination of the resistor (R) and the inductor (L), while the Thevenin voltage (Vth) is the open circuit voltage between nodes a and b. Once we have the Thevenin impedance and voltage, we can represent the Thevenin equivalent circuit as an ideal voltage source (Vth) in series with the Thevenin impedance (Zth).
To determine the values A and B in the form (A+Bj) for the Thevenin impedance, we would need additional information about the specific values of R and L in the circuit. Without this information, it is not possible to determine the values of A and B.