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its a simple language notes of only important topics that i have revised in my exam and i scored 63 in physics out of 70. for more u can directly email me at:

Institution
Sixth Year / 12th Grade
Course
Physics

Content preview

Class 12 Physics - Chapter 1


Electric Charges and Fields - Easy Revision Notes with Mind
Maps




1. Electric Charge


• Two types of charges: Positive (+) and Negative (-)

• Like charges repel, unlike charges attract

• SI unit: Coulomb (C)

• Quantisation of charge: q = ne

• Conservation of charge: Charge can neither be created nor destroyed



Mind Map: Electric Charge



Electric Charge
|
|-- Types → Positive / Negative
|-- Properties → Quantisation / Conservation
|-- Unit → Coulomb




2. Coulomb's Law


• Force between two charges: F = k(q1q2/r^2)

• Force acts along the line joining two charges

• k = 9 × 10^9 Nm²/C² in vacuum

• Inverse square law



Mind Map: Coulomb's Law



Coulomb's Law
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NCERT Science
  • 2010
  • 9788174504920
  • Unknown

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Institution
Secondary school
Course
Physics
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2
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Uploaded on
March 4, 2026
Number of pages
2
Written in
2025/2026
Type
SUMMARY

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  • chapter 1
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