Question

when a wire elongates along the length it's radius is​

Answer 1

Answer:

Young Modulus ⇒4=

A

0

△L

FL

0

△L=F×L

0

/A

0

4

A

0

=πr

0

2

F=mg=9×98=88.2 N

△L=9mm=0.009 m

A=π(2r)

2

=4A

0

elongation will be : DL

′

=

AY

F×L

0

=

4A

0

Y

F×L

0

△L

′

=

4

△L

=

4

9

∴△L

′

=2.25 mm