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In an experiment, brass and steel wires of length 1 m each with areas of cross section 1 m are used.  The wires are connected in series and one end of the combined wire is connected to a rigid support and other end is subjected to elongation.  The stress required to produce a net elongation of 0.2 mm is,

 

(a)

8

(b)

1.2

(c)

4.0

(d)

0.2



Question ID - 51392 | SaraNextGen Top Answer

In an experiment, brass and steel wires of length 1 m each with areas of cross section 1 m are used.  The wires are connected in series and one end of the combined wire is connected to a rigid support and other end is subjected to elongation.  The stress required to produce a net elongation of 0.2 mm is,

 

(a)

8

(b)

1.2

(c)

4.0

(d)

0.2

1 Answer
127 votes
Answer Key / Explanation : (a) -

Corresponding to the stress (

Total elongation

=0.2

=8              

127 votes


127