In typical residential wiring, the copper wire has a diameter of 2.05 m m and ca

Question

In typical residential wiring, the copper wire has a diameter of 2.05mm and carries a maximum current of 192? A due solely to electrons, each of which has a charge of 1.60 In typical residential wiring, the copper wire has a diameter of 2.05mm and carries a maximum current of 192? A due solely to electrons, each of which has a charge of 1.60 In typical residential wiring, the copper wire has a diameter of 2.05mm and carries a maximum current of 192? A due solely to electrons, each of which has a charge of 1.60 In typical residential wiring, the copper wire has a diameter of 2.05mm and carries a maximum current of 192? A due solely to electrons, each of which has a charge of 1.60

Explanation / Answer

the average veocity can be found out from the following formula

I = n*e*A*Vd

where n is the electron concentration, e is the electronic charge,A is the area and Vd is the drift velocity of carrier in the material.

I did'n t understand the current value you have given assuming it is 192u A, and area of the wire A = pi*(2.05/2*10^-3)^2 m3

so from the equation we get

Vd = 3.533 *10^17 m/S

which is of corse absurd becuse it is greater then the valocity of light. I think this due to wrong value of current. use proper value of current and use the above formuyla you will get the result.

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