Question

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Answer 1

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

Answer 2

\[\rho = \frac{ RA }{ L }\]

Answer 3

\[\frac{ 2A }{ L } = \frac{ RA }{ 4L }\]

Answer 4

=2Ω*(2)*(2)
=8Ω

Answer 5

thank you! and is thats the correct answer and did I show the work correctly?

Answer 6

yeah !