A copper wire of 1mm diameter is stretched by applying a force on 10N .Find the stress in the wire.
Answer (1)
Student Expert
26th Oct, 2019
This is pretty simple. Just a direct formula based question. You need to practice such questions to set your hand then only you will be able to solve the tricky ones easily.
Stress = Force / Area
= 10 / π r²
= 10
π ( 10³ )²
( 2 )
= 4 × 10
3.14×10
= 40 × 10
3.14
= 12.7 × 10 N/m²
So the stress in the wire is 12.7 × 10 N/m²
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