potentiometer part 1 class 12 by hassan fareed || pgc lecture by hassan fareed

potentiometer part 1 class 12 by hassan fareed || pgc lecture by hassan fareed

Certainly, here are some additional details about potentiometers:

7. **Resistance Values:** Potentiometers come in various resistance values, ranging from a few ohms to several megaohms. The choice of resistance depends on the specific application and the desired range of adjustment.

8. **Fixed vs. Adjustable:** Some potentiometers are fixed, meaning their resistance is set at a specific value. Adjustable potentiometers, on the other hand, allow the user to change the resistance within a specified range.

9. **Single Turn vs. Multi-Turn:** Potentiometers can be single-turn or multi-turn. Single-turn potentiometers require only one complete revolution to go from one end of the resistance to the other. Multi-turn potentiometers provide finer control and require multiple turns to cover the full range.

10. **Rheostats:** A potentiometer used as a variable resistor (with only two terminals in use) is sometimes called a rheostat. Rheostats are often used for controlling current in a circuit rather than voltage.

11. **Wirewound vs. Carbon Composition:** Potentiometers can be constructed using different materials. Wirewound potentiometers use a wire wound around a resistive core, providing precise and stable resistance. Carbon composition potentiometers use a mixture of carbon particles and a binder, making them less precise but often more cost-effective.

12. **Wear and Tear:** Mechanical potentiometers with physical moving parts can experience wear and tear over time, affecting their performance. In applications where durability is crucial, alternatives like digital potentiometers (using electronic switches) may be preferred.

13. **Digital Potentiometers:** These are electronic devices that emulate the function of a traditional potentiometer using digital signals. They are often controlled by microcontrollers or digital circuits, providing advantages such as programmability and memory storage of settings.

14. **Trimmer Potentiometers:** These are small, adjustable potentiometers often used for calibration or fine-tuning in electronic circuits. They are typically mounted directly on the circuit board.

15. **Temperature Coefficient:** The resistance of a potentiometer can change with temperature. Potentiometers with a low temperature coefficient are less sensitive to temperature variations.

When using a potentiometer in a circuit, it's important to consider the specifications and characteristics that match the requirements of the application. Whether it's adjusting voltage, current, or other parameters, potentiometers offer a versatile and widely used solution in electronic systems.

[AliRazaSaleem-uz]

May you live long you are providing quality lectures for free. I am a hardworking students and this helps me a lot to clear the concepts.

[nadeemahmad]

Thank you very much
Excellent explanation ❤

[dragongamer]

U are the best physics teacher I have seen so far❤

[ranarajpoot]

Jin ko physics passand nhi wo inn sir sy parh lyy bohtt acha parhaty hain

[asifkhosa]

Amazing ❤ you are my favorite teacher ever❤

[Wasay_rajpoot]

Kia baat hai sir
Pheli bar pak ma kuch sasty ka suna hai
😂😂😂😂😂😂😂😂😂

[HadiaAmjad-jc]

For those who are asking for next part ❤❤
Agr aap ko bhi sir ky lecture miltay hn to shre ker dia karein
Fan of sir**❤❤

[ZamanAzhar-rg]

Sir g parallel maim to current distribute hota hai lekin voltage ko to literally koi frq nhi prta phir ap kiun keh rhe hau k potential change ho jaiga voltmeter ka

[NadeemKhan-bt]

Thanks sir❤❤. But where is its next part.