CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Two wires of same material are having length L and 2L. Compare their resistance and resistivity.

Open in App
Solution

Resistivity remains the same as it does not depend on the length. Resistivity itself means the resistance offered by a material per unit length and unit area.
While the resistance depends on the length ,
R1=ρLA
R2=ρ2LA
R2=2ρLA
R2=2R1
Thus, the resistance of 2nd wire is twice than that of 1st wire.




flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Conductivity and Resistivity
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon