Electricity Flashcards
1
Q
What is current and the unit
A
The flow of electric charge around a circuit. It will only flow through a closed circuit (closed switch) if there is a potential difference. In a single closed loop the current is the same everywhere. It flows from high potential to low potential. The unit of current is Amps (A).
2
Q
What is potential difference and the unit
A
The driving force that pushes the charge around.
3
Q
What is resistance and unit
A
Anything in the circuit that slows down the flow. Unit is ohms.
4
Q
What is the equation for charge
A
Q = I x T
