Science, asked by nabasmita, 4 months ago

a wire of radius 2mm is extended by 10%. if the required force is 50N, then calculate the values of Y(youngs modulus)

Answers

Answered by AlbinSDaniel
0

Answer: Given :    L=2 m          A=0.0225mm  

2

=0.0225×10  

−6

 m  

3

        F=100 N

Stress =  

A

F

​  

=  

0.0225×10  

−6

 

100

​  

=4.4×10  

9

 N/m  

2

 

Energy stored   U=  

2

1

​  

×  

Y

(stress)  

2

 

​  

×AL

Or  U=  

2

1

​  

×  

20×10  

10

 

(4.4×10  

9

)  

2

 

​  

×(0.0225×10  

−6

)(2)=2.222 J

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