Zimmerman Hanson
06/15/2023 · Junior High School

Un circuit électrique comprend les éléments suivants disposés en série : une pile, un interrupteur K, deux lampes \( \left(L_{1}\right) \) et \( \left(L_{2}\right) \). Un voltmètre, convenablement branché, mesure la tension aux bornes de \( \left(L_{1}\right) \). a) L'interrupteur K est ouvert. 1) Dessiner le montage réalisé. (2) Donner la valeur affichée par le voltmètre.

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- a) Montage réalisé : Une pile, un interrupteur K, deux lampes \( L_1 \) et \( L_2 \) en série, avec un voltmètre connecté aux bornes de \( L_1 \). - b) Valeur affichée par le voltmètre : 0 V.

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