current

 Current

    If 6.242x 10^18 electrons drift at uniform velocity through the imaginary circular cross section  in 1 second,the flow of charge, or current,is said to be 1 ampere(A) in honor of André Marie Ampère . This is an enormous number of electrons passing through the surface in 1 second. The Current associated with only a few electrons per second would be inconsequential and of little practical value. To establish numerical values that permit immediate comparisons between levels, a coulomb(C) of charge was defined as the total charge associated with  6.242x 10^18 electrons. The charge associated with one Electron can then be determined from