A wire has a circular cross-section with constant area throughout its length. Which statement is correct?
- AThe resistance of the wire is directly proportional to its cross-sectional area and inversely proportional to its diameter.
- BThe resistance of the wire is directly proportional to its cross-sectional area and inversely proportional to its length.
- CThe resistance of the wire is directly proportional to its length and inversely proportional to its cross-sectional area.
- DThe resistance of the wire is directly proportional to its length and inversely proportional to its diameter.