Скачать или смотреть Coulomb’s Law Explained | The Force Between Two Point Charges ⚡ | VidhyaKshetra

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In this powerful and engaging session, we’ll uncover one of the most fundamental laws of electrostatics — Coulomb’s Law, which explains how two electric charges attract or repel each other.

💡 Topic: Coulomb’s Law – Force Between Two Point Charges
🎯 Concept Covered: Electric Force, Point Charges, Distance Effect, Attraction & Repulsion, Vector Form, Superposition

⚡ What You’ll Learn in this Lecture

✅ The meaning of point charges and electrostatic force
✅ The statement and mathematical form of Coulomb’s Law
✅ The difference between scalar and vector form
✅ How to determine attractive or repulsive forces between charges
✅ The effect of distance and charge magnitude on electric force
✅ The superposition principle – how multiple charges act together
✅ Worked examples with step-by-step calculations
✅ Real-life applications — from balloons to atomic forces

📘 Formula Recap
𝐹
=
𝑘
∣
𝑞
1
𝑞
2
∣
𝑟
2
F=k
r
2
∣q
1
​

q
#CoulombsLaw #Electrostatics #PhysicsLecture #ElectricCharges #PointCharges #VidhyaKshetra #ScienceForStudents #LearnPhysics #PhysicsExplained #ElectricForce #AttractionAndRepulsion #CoulombForce
2
​

∣
​


Where:

𝐹
F = Electrostatic Force (N)

𝑞
1
,
𝑞
2
q
1
​

,q
2
​

= Magnitudes of charges (C)

𝑟
r = Distance between charges (m)

𝑘
=
9
×
10
9
 
N
\cdotp
m
2
/
C
2
k=9×10
9
N\cdotpm
2
/C
2
(Coulomb’s constant)

💬 Same signs → Repel each other
💬 Opposite signs → Attract each other

🎬 Video Highlights

00:00 — Introduction & Real-Life Demo
01:00 — What is Coulomb’s Law?
02:30 — Force Formula & Explanation
05:00 — Attraction vs. Repulsion Explained
07:00 — Worked Numerical Problems
10:00 — Superposition Principle
12:00 — Quiz & Summary

🧠 Quick Example

If two charges
+
2
𝜇
𝐶
+2μC and
−
3
𝜇
𝐶
−3μC are separated by 5 cm,

𝐹
=
9
×
10
9
×
(
2
×
10
−
6
)
(
3
×
10
−
6
)
(
0.05
)
2
=
21.6
 
N (Attractive Force)
F=9×10
9
×
(0.05)
2
(2×10
−6
)(3×10
−6
)
​

=21.6N (Attractive Force)
🌍 Real-Life Connections

Static cling on clothes

Attraction of dust to TV screens

Lightning & thundercloud charge separation

Forces between protons and electrons

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