The Electrostatics Series
Eight exam-ready cards opening the Class 12 high-weightage block for JEE Main, JEE Advanced and NEET — from balloon rubs to capacitor banks, every formula explained letter by letter.
Charge and Coulomb’s Law: The Push and Pull of Electricity
Charge comes in two kinds: positive and negative — like charges push apart, unlike charges pull together — letter-by-letter formulas, graded examples, memory tricks, daily-life anchors.
Electric Field: The Invisible Influence Around Every Charge
The field is the push a +1 C test charge would feel at a point — it exists even in empty space — letter-by-letter formulas, graded examples, memory tricks, daily-life anchors.
Electric Potential: The Energy Landscape of Charge
Potential V = energy per coulomb — the ‘electrical height’ of a point (volts) — letter-by-letter formulas, graded examples, memory tricks, daily-life anchors.
Gauss’s Law: Counting Field Through a Surface
Gauss’s law: total field through a closed surface ∝ charge enclosed — letter-by-letter formulas, graded examples, memory tricks, daily-life anchors.
Conductors and Shielding: Why Your Lift Kills Phone Signals
In a conductor, charges are free to move — and they move until the interior field is zero — letter-by-letter formulas, graded examples, memory tricks, daily-life anchors.
Capacitance: The Charge-Storing Sandwich
A capacitor = two conductors separated by an insulator, storing charge pairs — letter-by-letter formulas, graded examples, memory tricks, daily-life anchors.
Dielectrics and Energy Storage: Supercharging the Sandwich
A dielectric (insulator) in the gap MULTIPLIES capacitance: C = κε₀A/d — letter-by-letter formulas, graded examples, memory tricks, daily-life anchors.
Electrostatics Finale: The Formula Card and the Charged World
The chapter’s map: charge → field → potential → Gauss → conductors → capacitors → dielectrics — letter-by-letter formulas, graded examples, memory tricks, daily-life anchors.