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If the p.d. of 0.75 v is applied at the end of a wire of length 1.0 m long with a cross-sectional area of 1.6...

      

If the p.d. of 0.75 v is applied at the end of a wire of length 1.0 m long with a cross-sectional area of 1.6 x 10^-4 m^2 and a current of 1.4 A flow through it. Calculate its resistivity.

  

Answers


joseph
R=?L/A
v/I = ?L/A
(0.75/1.4) = ?1/(1.6x10^-4)
? =( 0.75 x 1.6 x 10^-4)/(1.4 x 1)
=8.571 x 10^-5ohm metre

joseph rimiru answered the question on October 9, 2017 at 14:10


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