chris215
  • chris215
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Physics
katieb
  • katieb
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Rushwr
  • Rushwr
hey since its the same wire the resistivities in both instances are the same so get 2 equations for resistivity equalize them and get the value for resistance . I got it as * ohms
Rushwr
  • Rushwr
\[\rho = \frac{ RA }{ L }\]
Rushwr
  • Rushwr
\[\frac{ 2A }{ L } = \frac{ RA }{ 4L }\]

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chris215
  • chris215
=2Ω*(2)*(2) =8Ω
chris215
  • chris215
thank you! and is thats the correct answer and did I show the work correctly?
Rushwr
  • Rushwr
yeah !

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