Current resistance and P.D Flashcards
1
Q
What does current depend on (flow of charge)
A
resistance of components
P.D
2
Q
what does higher resistance mean
A
less current across component
3
Q
what equation links: P.D Current and Resistance
A
V = IR
4
Q
does a long wire increase or decrease resistance
A
increases because there are more particles which could block flow
5
Q
how does an increase in temperature effect wire resistance
A
increase in temperature increases resistance because the positive ions in the metal vibrate more
