Physics Department GPGC,Sariab Road Quetta

08/08/2026

🔧 ملٹی میٹر سیکھیں آسان انداز میں! 📟⚡
اگر آپ الیکٹرونکس، سولر، VFD، انورٹر یا الیکٹریکل کام سیکھ رہے ہیں تو ملٹی میٹر آپ کا سب سے اہم ٹول ہے۔
اس پوسٹر میں آپ سیکھیں گے: ✅ DC اور AC وولٹیج چیک کرنا
✅ ریزسٹنس (Resistance) ناپنا
✅ کنٹینیوٹی (Continuity) ٹیسٹ کرنا
✅ ڈائیوڈ چیک کرنا
✅ کرنٹ (Current) ناپنا
✅ کیپیسیٹینس، فریکوئنسی اور Temperature چیک کرنا
✅ ملٹی میٹر کے بنیادی اصول اور حفاظتی ہدایات
📚 اس پوسٹ کو محفوظ (Save) کریں تاکہ ضرورت کے وقت دوبارہ دیکھ سکیں، اور اپنے دوستوں کے ساتھ ضرور شیئر کریں تاکہ وہ بھی فائدہ اٹھا سکیں۔
مزید الیکٹرونکس، سولر، VFD اور ٹیکنیکل معلومات کے لیے ہمارا پیج فالو کریں۔

05/08/2026

Here is a structured, engaging post tailored specifically for your college page:

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🎓 **BALOCHISTAN EDUCATIONAL AWARENESS | DEPARTMENT OF PHYSICS**

**"Mathematics is not about memorizing formulas—it’s about making sense of the world."**

To truly master physics and calculus, understanding the fundamental connection between discrete approximation and exact continuous limits is essential.

# # # 💡 **Riemann Sum ($\sum$) vs. Integration ($\int$)**

* 🧱 **Riemann Sum ($\sum$): Step-by-Step Approximation**
We begin by dividing complex problems into small, discrete steps ($k = 1, 2, \dots, n$). Each step brings us closer to understanding the whole system.
* 📈 **Integration ($\int$): The Exact Area**
As our steps become infinitely small ($n \to \infty$), approximation transforms into perfection. It’s not just close—it’s exact.

> **"Approximate to understand. Integrate to know for sure."**
> *Two different paths leading to the same mathematical truth.*

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✨ **Designed & Curated for Students' Learning**

**Prof. Abdul Baqi Aziz**

*Department of Physics*

*Government Postgraduate College, Sariab Road, Quetta*

📌 *Follow our page for more academic insights, study guides, and educational announcements!*
Goverment Education Department District Barkhan Government Boys Degree College Bela
Government Post Graduate College Saryab Road Quetta

24/07/2026

📖 Mastering the Oscilloscope 🔬

Understanding electrical waveforms is fundamental to electronics. This week, we explore the Oscilloscope, a powerful diagnostic tool that allows engineers and students to visually "see" electricity.

While a multimeter gives you single numbers, an oscilloscope provides the complete picture. This detailed guide, presented by Prof. Abdul Baqi Aziz, will help you interpret the displayed data.

Key Learning Points:

📊 The Screen: A two-axis graphical representation.

The Vertical Axis (Y) represents Voltage (signal amplitude).

The Horizontal Axis (X) represents Time (allowing frequency and period calculations).

⚙️ Primary Controls & Terms:

VOLTS/DIV (Vertical Scale): Determines how much voltage each grid box represents vertically.

TIME/DIV (Horizontal Time Base): Determines how much time each grid box represents horizontally.

Trigger: Stabilizes the waveform display so that repetitive signals look stationary.

✅ Quick Reference Table (Available in the Graphic):

Waveform: The shape of the signal (Sine, Square, etc.).

Amplitude: The vertical height (measured in Volts).

Time Period (T): The time it takes for one complete cycle (measured in seconds).

Frequency (f): The number of cycles per second (measured in Hertz, calculated as f = 1 / T).

💡 Pro Tip: Always make sure your probe is properly compensated (check the little square wave test signal on your device) before taking accurate measurements.

🎓 Prepared & Recommended By:Prof. Abdul Baqi Aziz
Department of Physics,
Government Postgraduate College, Sariab Road, Quetta.

26/06/2026

24/06/2026

3/29 اور 7/29 تار لینے سے پہلے انکا فرق جان لیں
Difference Between 3/29 And 7/29 Wire 🧑‍🔧⚡

09/06/2026

[Very Useful and Interesting Information You Must Know]

Scientists whose Names are Used as SI Units - - -

There are 7 SI base units and 22 SI derived units (excluding compound units) — we have been studying this, since high school. The interesting thing is that, out of these 29, 19 units are named after prominent scientists, recognizing their significant contributions to physics.

As a rule, the SI units are written in lowercase letters, but symbols of units derived from the name of a person begin with a capital letter (don't confuse). Here is the list:-

SI base units (green in the image) —
1. Kelvin (K): Thermodynamic temperature (named after Lord Kelvin)
2. Ampere (A): Electric current (named after André-Marie Ampère)

SI derived units —
1. newton (N): Force (named after Sir Isaac Newton).
2. henry (H): Inductance (named after Joseph Henry).
3. joule (J): Energy, work, heat (named after James Prescott Joule).
4. hertz (Hz): Frequency (named after Heinrich Rudolf Hertz).
5. weber (Wb): Magnetic flux (named after Wilhelm Weber).
6. siemens (S): Electrical conductance (named after Werner von Siemens).
7. farad (F): Capacitance (named after Michael Faraday)
8. gray (Gy): Absorbed dose of radiation (named after Louis Harold Gray).
9. becquerel (Bq): Radioactivity (named after Henri Becquerel).
10. degree Celsius (°C): Temperature (named after Anders Celsius).
11. pascal (Pa): Pressure (named after Blaise Pascal).
12. ohm (Ω): Electrical resistance (named after Georg Ohm).
13. coulomb (C): Electric charge (named after Charles-Augustin de Coulomb).
14. tesla (T): Magnetic flux density (named after Nikola Tesla).
15. volt (V): Electric potential (named after Alessandro Volta).
16. sievert (Sv): Radiation dose equivalent (named after Rolf Sievert).
17. watt (W): Power (named after James Watt).