In the 90s, and up until cell phone cameras were a big thing, I remember some family members having cameras with rather large flash modules on top and it would make a weird noise once the flash goes off after taking a picture. Some smaller flash capable cameras would make the sound also.
In: Technology
That was a capacitor.
A flash tube requires a very high current for an instant. In electronics, capacitors are designed to build up a large charge and then quickly discharge.
ELI5: it’s like in a video game where you have a gun and hold the button to power up a big shot
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