« Back to Category: Advanced Theory Random (Advanced) Next in Category »
After two time constants, the capacitor in an RC circuit is charged to what percentage of the supply voltage?
86.5%
The voltage across a charging capacitor reaches V_supply * (1 - e^(-t/τ)). For t = 2τ, this is (1 - e^-2) ≈ 0.8647, or 86.5% of the supply voltage.
Warning: Generated by AI