Topic 21 - current and circuits Flashcards
1
Q
what effect does potential difference have on current
A
the higher the voltage, the higher the current
2
Q
what is the equation for charge
A
charge = current x time
coulombs, amps, time
3
Q
when can current flow through an electrical current
A
when there is voltage across that component
4
Q
what is voltage and what is its units
A
the driving force that pushes the charge around
Its measured in volts (V)
