DIG REVISION

Question 1

What is resistance?

Answer 1

Resistance is a measure of how difficult it is for current to flow

Question 2

What three things determine resistance?

Answer 2

.LENGTH-LONGER THE WIRE MORE DIFFICULT IT IS FOR CURRENT TO FLOW
.AREA-THE WIDER THE WIRE THE EASIER IT IS FOR CURRENT TO FLOW
.Resistivity-depends on the material the wire is made from as the structure of the material makes it easier or harder for charge to flow, resistivity also depends on environmental factors such as temperature