A copper wire and a Nichrome wire were found to have the same resistance.
(a) Will the two wires have the same resistivity also? Justify your answer.
(b) Give an example of a pure metal having high resistivity.
(c) What is the unit of resistivity?

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Solution

(a) No. The two wires will not have the same resistivity as the nature of both materials is different.
(b) Tungsten is an example which has high resistivity.
(c) Ohm-metre $Ω - m$

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A copper wire and a Nichrome wire were found to have the same resistance.(a) Will the two wires have the same resistivity also? Justify your answer.(b) Give an example of a pure metal having high resistivity.(c) What is the unit of resistivity?

(a) No. The two wires will not have the same resistivity as the nature of both materials is different.(b) Tungsten is an example which has high resistivity.(c) Ohm-metre Ω−m

A copper wire and a Nichrome wire were found to have the same resistance.
(a) Will the two wires have the same resistivity also? Justify your answer.
(b) Give an example of a pure metal having high resistivity.
(c) What is the unit of resistivity?

(a) No. The two wires will not have the same resistivity as the nature of both materials is different.
(b) Tungsten is an example which has high resistivity.
(c) Ohm-metre $Ω - m$