Current and Electric Charge Flashcards
1
Q
Electric Current
A
An electric current is a flow of electric charge
2
Q
Conductor
A
A substance through which electric charge can flow is called a conductor
3
Q
Insulator
A
A substance through which electric charge cannot flow is called an insulator
4
Q
Unit of Electric Charge
A
The unit of electric charge is the coulomb (C)
5
Q
Unit of Electric Current
A
The unit of electric current is the ampere (A)
1 Ampere = 1 Coulomb per second
6
Q
Size of an Electric Current
A
The size of an electric current in a conductor is by definition the amount of charge passing any point of that conductor per second
7
Q
Ammeter
A
An ammeter must be connected in series with the part of the circuit in which the current to be measured is flowing
