Electrostatic Potential & Capacitance
Class 12 · Electrostatic Potential & Capacitance
RC Discharging
q(t) = Q₀ e^(−t/τ). 37% remaining at τ marked clearly.
Key Notes
01
Discharging: q(t) = Q₀e^(−t/τ).
02
At τ: 37% of original charge remains.
03
Energy dissipated through R = ½CV² (all stored energy).
Formulas
Discharge
Exponential decay.
Important Points
Same τ as charging — geometry-independent property of the circuit.
Capacitors don't dissipate energy themselves; the resistor does.
RC Discharging notes from sciphylab (also known as SciPhy, SciPhy Lab, SciPhy Labs, Physics Lab). Class 12 physics revision for JEE Mains, JEE Advanced, NEET UG, AP Physics 1/2/C, SAT, and CUET-UG.