Question

Electrical resistivity of a given metallic wire depends upon
(a) its length
(b) its thickness
(c) its shape
(d) nature of the material

NCERT Class X
Science - Exemplar Problems

Chapter_Electricity

Answer 1

d) nature of the material....   
resistivity is property of the material.


R  Resistance depends on all the four factors ..

Answer 2

resistivity of a given metallic wire depends upon
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(d) nature of the material

different metals will have different melting , boiling etc and they will have different property as compared to each other

which affects the resistivity of a material