CBSE Class 10 Answered
How will the resistance change if the length of the wire is doubled?
Asked by ms0851000 | 11 Mar, 2019, 18:55: PM
Resistance of a conductor is given as
![R space equals space rho cross times l over A
w h e r e space rho space i s space t h e space r e s i s t i v i t y space o f space t h e space c o n d u c t o r
l space i s space t h e space l e n g t h space o f space t h e space c o n d u c t o r
a n d space A space i s space t h e space c r o s s space s e c t i o n space a r e a space o f space c o n d u c t o r](https://images.topperlearning.com/topper/tinymce/cache/44196ec46977208ca92583c9f241d7c7.png)
Here we can see the resistance of the resistor is directly proportional to the length of the conductor
If we double the length of the wire then the resistance of the wire will become two times as that of initial value.
Answered by Ankit K | 11 Mar, 2019, 20:36: PM
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