Question: A zine wire sample at 20C is found to have resistivity p= 5.9 X10 ohm-m. (a) Find the conductivitya. (b) An applied electric voltage

A zine wire sample at 20C is found to have resistivity p=

A zine wire sample at 20C is found to have resistivity p= 5.9 X10 ohm-m. (a) Find the conductivitya. (b) An applied electric voltage drives a steady current through the zine sample. The current density at a point in the sample is found to be j=4 X 10 A/m. Calculate the clectric field at that point. (c) The wire sample has cross- seetion area 4mm sample. 4X10 m and length 1em 102 m. Find the resistance of the

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