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Thethe42210
@Thethe42210
May 2019
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Bonjour j'ai besoins d'aide pour cette exercice sur des résistances :) Pouvez vous maider je ne comprend rien
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scoladan
Verified answer
Bonjour,
R = (R4+R5) en série avec R2//R3
R' = R // R6
Req = R' + R1
R4+R5 = 150+680 = 830 ohms
R2//R3 = R2xR3/(R2+R3) = 1000x2200/3200 = 687,5 ohms
==> R = 830 + 687,5 = 1517,5 ohms
R' = RxR6/(R+R6) = 1517,5x15000/16517,5 = 1378,08 ohms
Req = R'+R1 = 1378+470 = 1848 ohms
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Amateur
Bonsoir,
pour illustrer la réponse de Scoladan
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Verified answer
Bonjour,R = (R4+R5) en série avec R2//R3
R' = R // R6
Req = R' + R1
R4+R5 = 150+680 = 830 ohms
R2//R3 = R2xR3/(R2+R3) = 1000x2200/3200 = 687,5 ohms
==> R = 830 + 687,5 = 1517,5 ohms
R' = RxR6/(R+R6) = 1517,5x15000/16517,5 = 1378,08 ohms
Req = R'+R1 = 1378+470 = 1848 ohms
pour illustrer la réponse de Scoladan