Answer Posted / somu0507
1- speed of light = 1/ [squire root of{(permeability of free space)X(permitivity of the free space)}]
2-speed of drift of charge in a conductor = Drift Velocity = (mobility of charge X Electric field applied across the conductor)=few Centimeters per second.
3-speed of effect of electricity in a conductor = speed of current and voltage wave in the conductor = 1/ [squire root of{(permeability of the conductor)X(permitivity of the conductor)}]
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