Why Does a Capacitor Draw So Much Current? | Inrush Current Explained

Why does a capacitor draw so much current when you first switch on a circuit, but almost none once it's charged? In this video, we use circuit simulation to explain capacitor inrush current, what happens in the first milliseconds after switch-on, and why adding a soft-start can make such a big difference. ⚡ What you'll learn: Why an uncharged capacitor initially draws high current How a 12V supply and 10Ω resistor produce a 1.2A initial current Why current decreases as the capacitor charges What I = C × dV/dt really means What happens without a current-limiting resistor How soft-start reduces peak charging current We use real circuit examples, animated diagrams, and simulation results to make the physics easier to understand. Subscribe for more practical electronics explanations, circuit simulations, and common mistakes explained visually. #Electronics #Capacitors #InrushCurrent #CircuitSimulation #Simvolta