Devoir #1

# Devoir #1 - Exercice 4.17 page 204 a < t < 0 v=0 i(t = v(t...

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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.
() () ( ) () ( ) ( ) () () 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 < t < 0 v=0 i(t = v(t...

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