asad1111
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why electric current flows at speed of light when we know that current is due to the drift velocity of electron which is only few km/s(i think)?
Electric Current: Why Does It Flow at Light Speed?
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hi asad1111! 
no, the electric field travels (away from the electrons) at the speed of light
asad1111 said:
no, the electric field travels (away from the electrons) at the speed of light
the electrons themselves get left behind! 
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asad1111 said:
The drift velocity of electrons in copper wire is
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/ohmmic.html