Question

how does the resistance of a conductor depend on:
1.length of conductor.
2.area of the cross section of the conductor.
3. Temperature of the conductor.

Answer 1

Heya Mate !!!







here is your answer !!!



resistance simply means obstacle that come across flow of current.



following are the factor which influence the flow of resistance.




1 ) LENGTH OF CONDUCTOR



➡ resistance is directly proportional to length of conductor.

➡ this means if the length of conductor is more then the resistance also will be more.


➡ if the length of conductor is Less then the resistance will be less.



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2 ) AREA OF CROSS SECTION :

➡ RESISTANCE is inversely proportional to area of cross section.



➡ if the area of cross section of conductor is less than the resistance is more.


➡ if the area of cross section is more than the resistance is less .





3 ) NATURE OF MATERIAL


resistance is dependent on nature of material are the conductor that is used to pass the electricity.





nature of conductor determine the a smooth or obstacle flow of current.( RESISTANCE )





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4) TEMPTATURE :-



resistance is directly proportional to temperature



⚽ if the temperature is more than the resistance will be more.



⚽ if the temperature is less than the resistance will be also less.




hope it helps you dear !!!


thanks !!


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Answer 2

Answer:in a long conductor , the number of collisions of free electrons with the positive ions will be more compared to a shorter one.therefore, a long conductor offers more resistance.

Explanation: [email protected]