1.

deribe formula for specific resistance

Answer»

Specific resistance of a conductor is the resistance of a conductor of unit length and unit area of cross section.Specific resistance is a property of a material while resistance is not.Resistance increases with length and decreases with area of cross section, but specific resistance does not.

Mathematically specific resistance is given by,p=(RA)/LWhere,p is Specific resistance/ resistivityR is ResistanceA is cross sectional area of the materialL is length of the material



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