Working principle of a capacitor

106

02:45:40

Lock the right switch. The capacitor will charge. Then open the right switch. Then lock the left switch. The electric current accumulated in the capacitor will flow along the circuit. Gradually, the LED starts to glow dimmer, as the capacitor discharges.

published 5 years ago

MatthewKessler

5 years ago

It's not a key. It's a switch. But useful principle!

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