a conductor wire having 2429 free electrons per metre cube carries a current of 20 ampere the cross section of wire is 1m square then the Drift velocity of electrons will be of the order of
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use I = n*e*A*V where n is the charge density
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use the formula neAVd...where
n=no.of electron
e=mass of electron
A=current
Vd=drift velocity
n=no.of electron
e=mass of electron
A=current
Vd=drift velocity
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