P2 Physics - calculating resistance, series circuits, parallel circuits,resistance of components Flashcards
1
Q
what is resistance measured in?
A
ohms
2
Q
when does the resistance in a wire increase
A
the thickness of the wires decreases
as the length of the wires increases
3
Q
whats the equation for calculating resistance?
A
potential difference = current x resistance
4
Q
what is a series circuit?
A
components connected one after the other on the same loop
5
Q
if one lamp breaks in a series circuit, what will happen to the other one?
A
it wont light
6
Q
what is a parallel circuit?
A
components connected on separate loops
7
Q
if a lamp breaks in a parallel circuit, what will happen to the other one?
A
it will still light
