If the stress on a wire is 107 7 NM−2 − 2 and the wire is stretched from its original length of 10.00m to 10.05m. The young's modulus of the wire is?

Question 1 Report

If the stress on a wire is 10

^{7}

NM

^{- 2}

and the wire is stretched from its original length of 10.00m to 10.05m. The young's modulus of the wire is?

5.0 x 10

^{- 4}

Nm

^{- 2}

5.0 x 10

^{- 5}

Nm

^{- 2}

2.0 x 10

^{- 8}

Nm

^{- 2}

2.0 x 10

^{9}

Nm

^{- 2}

Answer Details

Young's modulus $\frac{s t r e s s}{s t r a i n}$

Strain = $\frac{e}{l} = \frac{0.05}{10} = \frac{10^{7}}{0.005}$

2 x 10 $^{9}$ Nm $^{- 2}$

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