What is the resistivity of the unknown material

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Reference no: EM13509033

a wire of unknown material has a cross sectional area 5 mm^2 and length 12cm. The wire carries current density j = 3uC/s/m^2 and has a voltage difference of 30 V held constant it ends.

A) what is the total current in the wire ?

B) what is the resistivity of the unknown material ?

C) At what rate is electromechanical energy being converted into thermal energy in this wire?

Reference no: EM13509033

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