The graph illustrates how the current in a circuit component is related to the potential difference (p.d.) across it. It includes one straight part and one curved part. How does the resistance of the component change in these two parts as the current increases?
- Astraight section: resistance increases; curved section: resistance decreases
- Bstraight section: resistance increases; curved section: resistance increases
- Cstraight section: no change in resistance; curved section: resistance decreases
- Dstraight section: no change in resistance; curved section: resistance increases