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STALIN [3.7K]
3 years ago
9

Estimate the current density in copper wire at 20 °C if an electric field of 0.923 V/m exists within

Physics
1 answer:
hoa [83]3 years ago
4 0

We have that the estimated the current density in copper wire at 20 °C is

J=38*10^6A/m^2

From the question we are told

  • the current density in copper wire at 20 °C
  • if an electric field of 0.923 V/m exists within  the wire

Generally the equation for the current density  is mathematically given as

current density

J=\alpha E

Where

\alpha=\frac{1}{e}\\\\\\alpha=\frac{1}{2.44*10^{-8}}\\\\\alpha=4.09*10^7

Therefore

J=4.09*10^7* 0.923

J=38*10^6A/m^2

For more information on this visit

brainly.com/question/20459283?referrer=searchResults

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PLZ HELP ON #22-26!!!! <br><br>Please explain why and how you got your answer.
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22. a - (vf^2 - vi^2)/(2d) 
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I hope this helps!! 

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