A wire of length 3.0m has a percentage strain of `0.015%` under a tensile force.Determine the extension in the wire.

Options

A. 0.60 mm
B. 0.45 mm
C. 0.75 mm
D. 0.90 mm

Answer

B

Explanation

Here, original length, `l=3.0m`
Strain ,`Delta l = (0.015)/(100)l = (0.015 xx 3.0)/(10)`
`=0.45 xx 10^(-3) m`
`=0.45 mm` .