cours d'anglais EN terminale F2

    In a civilization where homes without television, electric light, radio, true that the average consumer has at best a very sketchy idea of what he is paying for each time his electricity bill falls due.

    questioned about the nature of electricity, most people will acknowledge that it is-a useful commodity; some will concede that it is a 'current'; a few will volunteer that an electric current is a flow of 'electrons'; one or two will know that electrons are parts of atoms. So an understanding of electricity must begin with the atom. 

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