quiz 3 Flashcards
The potential difference of a power supply is
The energy the power supply transfers to each unit of charge
What do we call materials which are not electrical conductors
Electrical insulators
State the unit of current
amps
State the unit of potential difference
volts
What component measures potential difference
voltmeter
What are 2 common types power supply?
cells/batteries or mains
What does 1v
1 one joule per coloumb
What component measures current
Ammeter
The potential difference across a component is
The energy each unit of charge transfers to the component
What does the word rate mean?
per second
Define current
The rate of flow of charge
why are certain materials electrical conductors?
They contain delocalised electrons
What does 1 A mean
1 coulomb per second
Which particles are responsible for electricity in circuits?
Electrons
Define potential difference
Energy transferred per unit of charge
