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Kapittel 8 · Reaktive elementerreactive elements

RC Charging: Why a Capacitor Fills on an Exponential Curve

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RC charging transient — a battery, resistor and capacitor in series; after the switch closes the capacitor voltage rises as V_C(t) = V_0(1 − e^{−t/τ}); the time constant τ = RC sets the speed (63% at one τ, ≈99% after five τ).

RC circuitcapacitor chargingtime constantexponentialtransient responsefirst-order system
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