Flashcards
P2: Dangers of static elsetricity, Charge and current
Flashcards do conjunto (7)
- 1Dangers of static electricity-explosions
Fuel out of a filler pipe builds up a static. Leads to a spark. Explodes in a dusty fumey place. - 2Uses of static electricity-electrostatic spray paint
Spray gun charged, charges paint. Paint repels eachother=fine spray. Object is opposite charge attracts all paint.
-even coat
-not much waste paint
-paints all object even when facing away from spray. - 3How to prevent electrostatic charge building up?-Earth objects
Connects charged object to ground. Easy oute for static charges. No charge build up.
Electrons go up=Positive charge
Electrons go down=Negative charge - 4Current?-Rate of flow of charge round the circuit. Current will only flow if there is a voltage across that component.
- 5Voltage(potential difference)Driving force that pushes current around.
- 6Resistance?Anything in circuit which slows flow down.
- 7There is a balance?Voltage trying to push the current around the circuit. Resistance opposing it. Relative size of voltage and resistance decide how big the current.
Informações
- Descrição
- This is a couple of additional physics topic questions. Including some relevent equations and definitions.
- Criado por
- paigeysonghurst
- Visualizações
- 22
- Avaliação