A metal wire upon excess stress moves to a region of permanent set. Before yielding to the fracture stress, it undergoes an extension equal to twice its length in its plastic region. The nature of the metal is

Brittle

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Ductile

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Perfectly elastic

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Perfectly plastic

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Solution

The correct option is B Ductile
A material is said to be ductile if it elongates to a larger length upon losing its elastic behaviour. Thus, the material is observed to be ductile
The correct option is (b)

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Question 3
Electrical resistivity of a given metallic wire depends upon

(a) its length
(b) its thickness
(c) its shape
(d) nature of the material

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A metal wire upon excess stress moves to a region of permanent set. Before yielding to the fracture stress, it undergoes an extension equal to twice its length in its plastic region. The nature of the metal is

The correct option is B DuctileA material is said to be ductile if it elongates to a larger length upon losing its elastic behaviour. Thus, the material is observed to be ductileThe correct option is (b)

The correct option is B Ductile
A material is said to be ductile if it elongates to a larger length upon losing its elastic behaviour. Thus, the material is observed to be ductile
The correct option is (b)