1.

Consider four conducting materials copper, tungsten, mercury and aluminium with resistivity ρC, ρT, ρM and ρA respectively(1) ρM > ρA > ρC (2) ρC > ρA > ρT (3) ρA > ρM > ρC (4) ρA > ρT > ρC

Answer»

Answer is (1) ρM > ρA > ρC

ρM = 98 × 10–8 

ρA = 2.80 × 10–8 

ρC = 1.72 × 10–8 

ρT = 5.65 × 10–8 

ρM > ρT > ρA > ρC



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