Electric Charges And Fields | Class 12th Board | Alvino | About Negative Charges

Описание: **Are you stuck solving these PHYSICS QUESTIONS 2025–26?

Why worry, Class 12 students? Your solution is here — by ALVINO!**

If Class 12 Physics numericals, concepts of Electrostatics, charge quantization, and electric forces are confusing you, this video will make everything super easy. One of the most important and most-asked topics in Class 12 Physics is Electric Charges & Fields, and this lesson explains it in the simplest and most scoring way.

Are you struggling with Physics numericals based on charge, electrons, and Coulomb’s law? Don’t worry! In this video, we solve one of the most repeated and concept-building questions from the chapter Electric Charges & Fields.

📌 Question Covered in This Video:

“A polythene piece rubbed with wool is found to have a negative charge of
3 × 10⁻⁷ C. Calculate the number of excess electrons on the polythene piece.”

This is one of the most repeated Class 12 Physics Board questions. In this video, we solve it step-by-step with clear logic, so every student understands the concept — not just the formula.

🌟 What You Will Learn Through This Question:

✔ What happens when polythene is rubbed with wool
✔ Why polythene becomes negatively charged
✔ Concept of quantization of charge (q = ne)
✔ Meaning of a negative charge on an object
✔ How to calculate number of excess electrons
✔ Relation between coulomb and electron charge
✔ Step-by-step numerical solving technique
✔ Common errors students make in Board exams
✔ Why charge is always an integral multiple of 1.6 × 10⁻¹⁹ C
✔ How this concept appears in Boards every year

🌟 What This Video Covers:

✔ Complete explanation of Electric Charges & Fields
✔ Conductors, insulators, and charging by friction
✔ Quantization of charge with easy logic
✔ Coulomb’s Law and its applications
✔ Electric field and electric field lines
✔ Most expected Class 12 Physics Electrostatics numericals
✔ Important PYQs from past Board papers
✔ Easy shortcuts for fast numerical solving
✔ Solved examples based on 2025–26 Board syllabus

🔥 Why This Physics Video Is Important for Class 12 Boards 2025–26:

The chapter Electric Charges & Fields always carries guaranteed numericals and theory questions.
Every year, the Boards ask questions based on:

Charge quantization

Calculation of number of electrons

Coulomb's law & force between charges

Electric field due to point charges

Charging by friction

With simple concepts, these become the easiest 5–7 marks in Physics.

🎯 Perfect for Students Searching:

“Class 12 Physics Electrostatics explanation”
“Number of electrons questions Class 12 Physics”
“Electric Charges & Fields numericals Class 12”
“Most important Physics questions for Boards 2025”
“How to solve Electrostatics numericals fast”
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If you want to score high in Class 12 Physics, this is a video you cannot miss!

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