Static Electricity Flashcards
What atoms are in the nucleus?
Protons and neutrons
What is in the outer shell of a atom?
Electrons
What are the charge of protons ?
Positive
What is the charge of neutrons ?
Neutral -no charge
What is the charge of electrons ?
Negative
What happens when a positive and negative charge comes together ?
They lose and electron
What happens when a proton and a proton or a electron and a electron come together ?
They gain and electron
What are ions done by ?
Friction
What is the law of Electrostatics?
Like charges repel
Unlike charges attract
Where are all charges discharged to?
Earth
What is a Thermistor?
Resistor which is affected by temp.
Temp rises
Resistance drops
Current rises
What is a LDR and what happens ?
Light dependent resistor
Light rises
Resistance drops
Current increased
What is Alternating potential difference?
Sockets
This goes from +230v to -230. Constantly changing between the two
How do u calculate potential difference?
Potential difference (v)= current (A) x resistance (o)
V=IxR
How many wires are in a plug?
3 wires
