Final answer:
To find the Thevenin voltage for the network connected to RL, we need to determine the equivalent Thevenin resistance (Rth) and the open-circuit voltage (Vth).
Step-by-step explanation:
To find the Thevenin voltage for the network connected to RL, we need to determine the equivalent Thevenin resistance (Rth) and the open-circuit voltage (Vth). Rth is the total resistance of the network, while Vth is the voltage across RL when it is disconnected. To find Rth, we calculate the parallel combination of all the resistors in the network. Next, we find Vth by analyzing the voltage division across the network. Finally, the Thevenin voltage (Vth) is equal to the voltage across RL when it is connected to the network.