Q.

A copper wire of 2 mm diameter is stretched by applying a force on 314 N . Find the stress in the wire

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a

1×108N/m2

b

1.373×106N/m2

c

1.473×107N/m2

d

1.573×1010N/m2

answer is A.

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Detailed Solution

Stress =FA=FπR2=3143.14×1×10-32=108N/m2
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