Class 12 Physics | CH16 Electrostatics | Lecture 8 | Exponential Decay of a Discharging Capacitor

In this lecture, we study *Exponential Decay of a Discharging Capacitor* from Class 12 Physics, Chapter 16: Electrostatics. Topics covered: Concept of exponential decay Discharging of a capacitor through a resistor Exponential decrease in charge with time Variation of potential difference during discharge Current decay in an RC circuit Derivation of the exponential decay equation Time constant of an RC circuit Interpretation of discharge graphs Important formulas and numerical problems Key equation: *Q = Q₀e⁻ᵗ/ᴿᶜ* This equation describes how the charge stored in a capacitor decreases exponentially with time during discharging. This lecture is designed to strengthen conceptual understanding and help students prepare for **Board Exams, Entry Tests, and MDCAT**. *Class:* 12th Physics *Chapter 16:* Electrostatics *Lecture 8:* Exponential Decay of a Discharging Capacitor