circuit symbol defo Flashcards
1
Q
ammeter
A
a device used to measure electric charge
2
Q
ampere
A
unit of current
3
Q
cell
A
a store of internal energy that can be transferred as an electric current in a curcuit
4
Q
conductor
A
a material which allows charge to move easily through it.
5
Q
insulator
A
a material that does not allow charge or. heat to pass through it easily.
6
Q
resistance
A
the opposition in an electrical component to the movement of electrical charge through it. resistance is measured in ohms.
7
Q
voltmeter
A
a device used to measure potential difference or voltage
8
Q
volt
A
unit of voltage. e.g the voltage across the lamp was 6 volts
