Static Electricity Examples Flashcards
How does an inkjet printer work
Tiny droplets of ink are forced out of a nozzle, making them electrically charged
The droplets are deflected as they pass between two metal plates
The droplets are attracted to the plate of opposite charge
The size and direction of the voltage across each plate changes so each droplet is deflected to hit a different place on the paper
Loads of tiny dots make up your printout
How does a photocopier work
The image plate is positively charged
Whiter parts of what you are copying make light fall on the plate and the charge leaks away in those places
Black powder is negatively charged so is attracted to the paper
The paper is heated so that the powder sticks
How does lightning work
Rain drops and ice bump together inside storm clouds, knocking off electrons, this leaves the top part of the cloud positively charged and the bottom part negatively charged, creating a huge voltage and big spark
How does fuel filling work
As fuel flows out of a filler pipe, static charge builds up
You can make metal nozzles so that the charge is conducted away instead of building up
You can also use earthing straps between the fuel tank and the fuel pipe
