Final answer:
To determine the range of load resistance RL to ensure the Zener diode is in the 'ON' state and doesn't exceed its maximum power rating, divide the voltage rating by the maximum current rating.
Step-by-step explanation:
The range of load resistance RL to ensure that the Zener diode is in the 'ON' state and does not exceed its maximum power rating can be calculated based on the voltage and current ratings of the Zener diode. The load resistance RL should be chosen such that the current through the diode is within its specified operating range.
To calculate the range of RL, you need to know the voltage rating (Vz) and the maximum current rating (Iz) of the Zener diode. The load resistance RL should be within the range of Vz / Iz. This ensures that the diode operates in the 'ON' state and does not exceed its maximum power rating.