وولٹیج ریگولیشن کس میں پائے جاتے ہیں (2- Voltage regulation is found in what?)

Here are the solutions to the next questions:

Question 2:
"2- وولٹیج ریگولیشن کس میں پائے جاتے ہیں" (2- Voltage regulation is found in what?)

Voltage regulation is a characteristic found in various electrical systems and components. It is primarily observed in:

• Power supplies (e.g., DC power supplies, voltage regulators) to maintain a stable output voltage despite changes in load or input voltage.
• Transformers and generators where it describes the change in output voltage from no-load to full-load conditions.

The final answer is $\boxed{\text{Power supplies, Transformers, Generators}}$

Question 3:
"3- الیکٹران اور ہولز میں کیا فرق ہے؟" (3