P2 - Electricity Flashcards
0
Q
What is the transfer of charge between materials called?
A
Static electricity
1
Q
What causes static electricity?
A
Friction
2
Q
Why does resistance in lamps increase as voltage is increased?
A
They get hot and ions vibrate more
3
Q
Define current
A
The rate of flow of charge
4
Q
Define voltage
A
The work done per unit of charge
5
Q
What do fuses do?
A
If there is too much voltage, they overheat and melt, breaking the circuit
6
Q
What do RCCBs do?
A
They monitor the live and neutral wire to make sure they are equal, if there is a difference the RCCB shuts off the circuit
