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
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
