Two pieces of metallic wire having equal lengths and equal volume placed in air have different resistances. The two wires must [NDA]

Two pieces of metallic wire having equal lengths and equal volume p

1.	Two pieces of metallic wire having equal lengths and equal volume placed in air have different resistances. The two wires must [NDA]
A.	have different cross-sections
B.	have different temperatures
C.	metals to become hard
D.	be of same density
Answer» D. be of same density

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Two pieces of metallic wire having equal lengths and equal volume placed in air have different resistances. The two wires must [NDA]

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