1m and radius 1mm has rasistance ,
of 100ohms
find the specific, resistance ofthe material
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Need to FinD :-
- The Specific Resistance of the material .
We know that , the resistance R of a material having a length l cross section area A is given by ,
- Where is the specific resistance of the material.
- Transposing the terms ,
- Since the wire is cylindrical , its cross sectional area will be same as that of circle πr².
- Put on the respective values ,
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