## Download illustration

- download Pixel graphics (PNG)
*awesome for presentations* - download Vector graphics (SVG)
*awesome for websites*

**Share** — copy and redistribute the material in any medium or format

**Adapt** — remix, transform, and build upon the material for any purpose, even commercially.

**Sharing and adapting of the illustration is allowed with indication of the link to the illustration.**

An electrical circuit with a capacitor of capacitance \(C\) and a series resistor with resistance \(R\). A specified source voltage \(U_0\) is used to charge the capacitor when the switch is closed. If, on the other hand, the switch is opened, then the capacitor is short-circuited and discharges. It causes a discharge current \( I(t) \) to flow through the circuit, which decreases exponentially.

The time-dependent voltage \( U_{\text C}(t) \) is measured across the capacitor. This follows an exponential curve as the capacitor discharges:`\[ U_{\text C}(t) ~=~ U_0 \, \mathrm{e}^{-\frac{t}{R\,C} } \]`