answer pls
A copper wire of 2 millimetre square cross sectional area carries a current of 2 ampere find the magnitude of the Drift velocity for the electrons in the wire. it is assume that there is only one free electrons per atom given a miss call to 63 and density of copper is 8900 kg per metre cube
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We have density which is 8900Kg/m3. That means, 8900 Kg mass in 1 cubic meter. Therefore we got mass = 8900Kg and Volume = 1 cubic meter. For number of atoms, divide given mass by Molar Mass that is, n = 8900/63. We got n, had current 2A, know the charge of electron 1.6*10^(-19) and given area 2 square millimeter. Put them in the formula Drift velocity = I/nea.
Anu447:
can u pls do it on a piece of paper
I am unable to upload a picture. You just need to put all those values in the equation and have to perform some calculations. Check your answer afterwards as I can't guess the correct answer.
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