EMF AND PD Flashcards
1
Q
Define EMF
A
Energy gained per unit charge across a component when transferred from other form to electrical
2
Q
Define PD
A
Energy lost per unit charge when transferred from electrical to other.
3
Q
Define resistance.
A
A measure of how much a material tries to stop electricity passing
4
Q
What are some factors that affect either resistance or current?
A
-Length of wire
-Material used
-Cross sectional area.
