See how DC power works
Hand-picked explainers from educators on YouTube. Videos load only when you press play, which keeps this page fast and private until you choose to watch.
How electricity works
The Engineering Mindset · Electrons, voltage and current, animated. Start here.
AC vs DC current
AddOhms · Why some things want alternating current and others direct current.
Voltage, current and resistance
Bozeman Science · The ideas behind our Ohm's law tool.
How solar panels work
TED-Ed · The photovoltaic effect and why panels make DC.
Inside a solar cell
Animated look at the P-N junction and cell construction.
How batteries work
TED-Ed · Chemistry of stored energy, from the first battery to today.
How a lithium-ion battery works
What moves inside the cell when you charge and discharge.
How an electric car works
Motor, inverter and battery pack explained with 3D animation.
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