| 1. |
8. How does the resistance of a conductor depend on : (a) length of the conductor ?(b) area of cross-section of the conductor ?(c) temperature of the conductor ? |
|
Answer» MARK AS BRAINLIESTExplanation:(a)Length: Resistance is directly proportional to the length of the conductor. So as the length INCREASES the value of resistance increases. Cross-sectional AREA: Resistance is inversely proportional to the cross-sectional area of the conductor.(B) Length: Resistance is directly proportional to the length of the conductor. So as the length increases the value of resistance increases. Cross-sectional area: Resistance is inversely proportional to the cross-sectional area of the conductor. So as the cross-sectional area increases the value of resistance decreases.(c) Since the resistance of some conductor, such as a PIECE of wire, depends on collisions within the wire itself, the resistance depends on TEMPERATURE. With increasing temperature, the resistance of the wire increases as collisions within the wire increase and "slow" the FLOW of current. |
|