sol_exercices.pdf

5
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    AbderrezakMachine crireOn voit qu' partir de n=5 que la valeur de A2 devient trs faible par rapport A1.On peut ainsi tronquer la srie n=5 et calculer maintenant la rsistivit apparente.Le mme raisonnement doit tre fait pour le modle de rsistivit obtenu en automne.

    PS: l'utilisation de l'abaque donne directment les valeurs de la rsistivit apparente dans les deux cas.