Devoir #1 - Exercice 4.17, page 204 a) - < t < 0 v=0...

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() () ( ) ( ) () ( ) 3 3 3 ) -0 0 0 0 7 05 m s 31 0 V s 0 0,428 10 A s 7 5ms 10ms 15 V 15 2,14 A 7 10 ms 0 0 0 7 a t v vt it R t t te n t t n R t R t R ∞< < = == = <≤ × = × ≤< = = ≤<∞ = = Exercice 4.17, page 204
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() () ( ) ( ) () ( ) 3 63 3 ) -0 0 0 05 m s 31 0 V s 0,5 10 3 10 1,5 10 A 5ms 10ms 15 V 0 10 ms 0 0 Il faut remarquer que le condensateur ne permet pas une variation instant b t v dv t it C dt t vt t te n dv t C dt t dv t C dt t dv t C dt −− ∞< < = == <≤ × × = × ≤< = ≤<∞ = année de la tension qui entraînerait l'apparition d'un courant infini. Dans la pratique, les variations instantannées ne sont pas réalisables, les variations rapides entraînent des pointes de courants décelables.
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() () ( ) () ( ) ( ) () () 3 3 3 00 32 62 3 0 2 63 5 ) -0 0 1 '' 0 05 m s 31 0 V s 11 0 3 1 0 0 71 0 1 3 10 ' 0,214 10 A s 0 2 5 ms: 0,214 10 5 10 5,35 A 5ms 10ms 15 V 1 t tt t c t v i t v t dt i L t vt t te n i t v t dt i t dt L t it t n Valeur à t vt d t L −∞ × ∞< < = =+ = <≤ + × ⎡⎤ × == × ⎢⎥ × ⎣⎦ ×⋅ × = ≤< = = ∫∫ [] 3 3 3 3 3 3 10 5 10 33 3 510 3 3 10 10 1 5 10 15 ' 5,35 s 0 1 15 ' 5,35 2.14 10 5 10 5,35 A s 0 10 ms: 2,14 10 10 10 5 10 5,35 16,05 A 10 ms 0 1 ' ' 10 10 0 16,05 16,05 A t t id t t t n
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Devoir #1 - Exercice 4.17, page 204 a) - &lt; t &lt; 0 v=0...

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