Electricity Flashcards
1
Q
What is electrical current
A
The rate of flow charge
2
Q
Where does current flow
A
From the positive terminal to the negative terminal of a cell
3
Q
Why are the wires in a electrical circut made from metal?
A
Metal is a good conductor of electricity, in wires the current is a flow of negatively charged electrons.
4
Q
What is the equation for charge ?
A
Charge = current x time
Q= IT
5
Q
What happenes in the terminal of cells?
A
One end of the circut is positive and the other negative, this sets up a potential difference (voltage)
6
Q
What is the definition of voltage?
A
The amount of energy transferred per unit of charge passing through the terminals. One volt is equivalent to one joule.
7
Q
A
