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Grade 12Electric Current

Calculate the drift velocity in a copper wire of radius 0.1 cm. Carrying current of 28.27 amp

Profile image of Shruti
8 Years agoGrade 12
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1 Answer

Profile image of Eshan
8 Years ago
For a conductor, current densityJ=nev_d=I/A
wherev_dis the drift velocity of the electroncs.

Hencev_d=\dfrac{I}{neA}
We need to know the number of copper atoms present per unit volume to find the drift velocity.