Ecrit par ✅ Quiz : Circuits Rlc
Ce quiz contient 20 questions.
Note : Placeholder pour valider la structure. Le JSON converti est conservé ci-dessous pour l’import final des vraies questions Tutor LMS.
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{
"quiz_title": "Circuits Rlc",
"quiz_slug": "12_circuits_rlc_quiz",
"quiz_description": "Quiz Edu509 : Circuits Rlc",
"quiz_settings": {
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"time_value": 0,
"time_type": "minutes"
},
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"questions": [
{
"question_order": 1,
"question_title": "Dans un circuit RLC série, quelle est l’expression correcte de la fréquence propre (sans résistance) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La fréquence propre d’un circuit RLC série sans résistance est donnée par \\\\( f_0 = \\\\frac{1}{2\\\\pi\\\\sqrt{LC}} \\\\).",
"answers": [
{
"answer_title": "\\\\( f_0 = \\\\frac{1}{2\\\\pi\\\\sqrt{LC}} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( f_0 = 2\\\\pi\\\\sqrt{LC} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( f_0 = \\\\frac{1}{LC} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( f_0 = \\\\frac{1}{2\\\\pi LC} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 2,
"question_title": "Un circuit RLC série a \\\\( R = 10\\\\,\\\\Omega \\\\), \\\\( L = 0{,}10\\\\,\\\\mathrm{H} \\\\), \\\\( C = 2{,}0 \\\\times 10^{-6}\\\\,\\\\mathrm{F} \\\\), et une source de fréquence \\\\( f = 1000\\\\,\\\\mathrm{Hz} \\\\). Quelle est la valeur de la pulsation \\\\( \\\\omega \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La pulsation est \\\\( \\\\omega = 2\\\\pi f = 2\\\\pi \\\\times 1000 = 6283\\\\,\\\\mathrm{rad/s} \\\\).",
"answers": [
{
"answer_title": "\\\\( 6283\\\\,\\\\mathrm{rad/s} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 3142\\\\,\\\\mathrm{rad/s} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 1000\\\\,\\\\mathrm{rad/s} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 2000\\\\,\\\\mathrm{rad/s} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 3,
"question_title": "Quelle est la réactance inductive \\\\( X_L \\\\) pour \\\\( L = 0{,}10\\\\,\\\\mathrm{H} \\\\) et \\\\( \\\\omega = 6283\\\\,\\\\mathrm{rad/s} \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La réactance inductive est \\\\( X_L = \\\\omega L = 6283 \\\\times 0{,}10 = 628{,}3\\\\,\\\\Omega \\\\).",
"answers": [
{
"answer_title": "\\\\( 628{,}3\\\\,\\\\Omega \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 62{,}8\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 6{,}28\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 0{,}628\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 4,
"question_title": "Pour \\\\( C = 2{,}0 \\\\times 10^{-6}\\\\,\\\\mathrm{F} \\\\) et \\\\( \\\\omega = 6283\\\\,\\\\mathrm{rad/s} \\\\), quelle est la réactance capacitive \\\\( X_C \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La réactance capacitive est \\\\( X_C = \\\\frac{1}{\\\\omega C} = \\\\frac{1}{6283 \\\\times 2{,}0 \\\\times 10^{-6}} \\\\approx 79{,}6\\\\,\\\\Omega \\\\).",
"answers": [
{
"answer_title": "\\\\( 79{,}6\\\\,\\\\Omega \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 628{,}3\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 12{,}6\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 0{,}32\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 5,
"question_title": "Dans un circuit RLC série, l’impédance totale \\\\( Z \\\\) est donnée par :",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "L’impédance d’un circuit RLC série est \\\\( Z = \\\\sqrt{R^2 + (X_L - X_C)^2} \\\\).",
"answers": [
{
"answer_title": "\\\\( Z = \\\\sqrt{R^2 + (X_L - X_C)^2} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( Z = R + X_L + X_C \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( Z = R + X_L - X_C \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( Z = \\\\sqrt{R^2 + (X_L + X_C)^2} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 6,
"question_title": "Pour \\\\( R = 10\\\\,\\\\Omega \\\\), \\\\( X_L = 628{,}3\\\\,\\\\Omega \\\\), \\\\( X_C = 79{,}6\\\\,\\\\Omega \\\\), quelle est l’impédance totale \\\\( Z \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "On a \\\\( Z = \\\\sqrt{10^2 + (628{,}3 - 79{,}6)^2} = \\\\sqrt{100 + 548{,}7^2} \\\\approx 549\\\\,\\\\Omega \\\\).",
"answers": [
{
"answer_title": "\\\\( 549\\\\,\\\\Omega \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 707\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 548{,}7\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 628{,}3\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 7,
"question_title": "Dans un circuit RLC série, si \\\\( E_{max} = 20\\\\,\\\\mathrm{V} \\\\) et \\\\( Z = 549\\\\,\\\\Omega \\\\), quel est le courant maximal \\\\( I_{max} \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Le courant maximal est \\\\( I_{max} = \\\\frac{20}{549} \\\\approx 0{,}036\\\\,\\\\mathrm{A} \\\\).",
"answers": [
{
"answer_title": "\\\\( 0{,}036\\\\,\\\\mathrm{A} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 0{,}20\\\\,\\\\mathrm{A} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 0{,}55\\\\,\\\\mathrm{A} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 2{,}0\\\\,\\\\mathrm{A} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 8,
"question_title": "Pour un circuit RLC série avec \\\\( L = 0{,}20\\\\,\\\\mathrm{H} \\\\) et \\\\( C = 5{,}0 \\\\times 10^{-6}\\\\,\\\\mathrm{F} \\\\), quelle est la fréquence propre \\\\( f_0 \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "On a \\\\( f_0 = \\\\frac{1}{2\\\\pi\\\\sqrt{0{,}20 \\\\times 5{,}0 \\\\times 10^{-6}}} \\\\approx 159\\\\,\\\\mathrm{Hz} \\\\).",
"answers": [
{
"answer_title": "\\\\( 159\\\\,\\\\mathrm{Hz} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 50\\\\,\\\\mathrm{Hz} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 1000\\\\,\\\\mathrm{Hz} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 318\\\\,\\\\mathrm{Hz} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 9,
"question_title": "Dans un circuit RLC série, si \\\\( R = 20\\\\,\\\\Omega \\\\), \\\\( L = 0{,}50\\\\,\\\\mathrm{H} \\\\), \\\\( C = 1{,}0 \\\\times 10^{-6}\\\\,\\\\mathrm{F} \\\\), et \\\\( Q_0 = 2{,}0 \\\\times 10^{-6}\\\\,\\\\mathrm{C} \\\\), quelle est la valeur maximale du courant initial \\\\( I_0 \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Le courant maximal initial est \\\\( I_0 = \\\\omega_0 Q_0 = 1414 \\\\times 2{,}0 \\\\times 10^{-6} = 2{,}83\\\\,\\\\mathrm{mA} \\\\).",
"answers": [
{
"answer_title": "\\\\( 2{,}83\\\\,\\\\mathrm{mA} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 20\\\\,\\\\mathrm{mA} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 1{,}41\\\\,\\\\mathrm{mA} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 0{,}50\\\\,\\\\mathrm{mA} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 10,
"question_title": "Pour deux condensateurs en série, \\\\( C_1 = 2{,}0\\\\,\\\\mu\\\\mathrm{F} \\\\) et \\\\( C_2 = 3{,}0\\\\,\\\\mu\\\\mathrm{F} \\\\), quelle est la capacité équivalente \\\\( C_{eq} \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Pour deux condensateurs en série, \\\\( \\\\frac{1}{C_{eq}} = \\\\frac{1}{2{,}0} + \\\\frac{1}{3{,}0} = 0{,}833 \\\\), donc \\\\( C_{eq} \\\\approx 1{,}20\\\\,\\\\mu\\\\mathrm{F} \\\\).",
"answers": [
{
"answer_title": "\\\\( 1{,}20\\\\,\\\\mu\\\\mathrm{F} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 5{,}0\\\\,\\\\mu\\\\mathrm{F} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 2{,}5\\\\,\\\\mu\\\\mathrm{F} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 0{,}83\\\\,\\\\mu\\\\mathrm{F} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 11,
"question_title": "Pour \\\\( L = 0{,}05\\\\,\\\\mathrm{H} \\\\) et \\\\( C_{eq} = 1{,}20 \\\\times 10^{-6}\\\\,\\\\mathrm{F} \\\\), quelle est la fréquence propre \\\\( f_0 \\\\) du circuit ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "On a \\\\( f_0 = \\\\frac{1}{2\\\\pi\\\\sqrt{0{,}05 \\\\times 1{,}20 \\\\times 10^{-6}}} \\\\approx 205\\\\,\\\\mathrm{Hz} \\\\).",
"answers": [
{
"answer_title": "\\\\( 205\\\\,\\\\mathrm{Hz} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 100\\\\,\\\\mathrm{Hz} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 50\\\\,\\\\mathrm{Hz} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 500\\\\,\\\\mathrm{Hz} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 12,
"question_title": "Dans un circuit RLC série, si \\\\( R = 50\\\\,\\\\Omega \\\\), \\\\( L = 0{,}10\\\\,\\\\mathrm{H} \\\\), \\\\( C = 4{,}0 \\\\times 10^{-6}\\\\,\\\\mathrm{F} \\\\), et \\\\( f = 800\\\\,\\\\mathrm{Hz} \\\\), quelle est la pulsation \\\\( \\\\omega \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La pulsation est \\\\( \\\\omega = 2\\\\pi \\\\times 800 = 5027\\\\,\\\\mathrm{rad/s} \\\\).",
"answers": [
{
"answer_title": "\\\\( 5027\\\\,\\\\mathrm{rad/s} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 4000\\\\,\\\\mathrm{rad/s} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 2513\\\\,\\\\mathrm{rad/s} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 6283\\\\,\\\\mathrm{rad/s} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 13,
"question_title": "Pour \\\\( L = 0{,}10\\\\,\\\\mathrm{H} \\\\) et \\\\( \\\\omega = 5027\\\\,\\\\mathrm{rad/s} \\\\), quelle est la réactance inductive \\\\( X_L \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La réactance inductive est \\\\( X_L = \\\\omega L = 5027 \\\\times 0{,}10 = 502{,}7\\\\,\\\\Omega \\\\).",
"answers": [
{
"answer_title": "\\\\( 502{,}7\\\\,\\\\Omega \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 50{,}3\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 5{,}03\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 0{,}50\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 14,
"question_title": "Pour \\\\( C = 4{,}0 \\\\times 10^{-6}\\\\,\\\\mathrm{F} \\\\) et \\\\( \\\\omega = 5027\\\\,\\\\mathrm{rad/s} \\\\), quelle est la réactance capacitive \\\\( X_C \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La réactance capacitive est \\\\( X_C = \\\\frac{1}{5027 \\\\times 4{,}0 \\\\times 10^{-6}} \\\\approx 49{,}7\\\\,\\\\Omega \\\\).",
"answers": [
{
"answer_title": "\\\\( 49{,}7\\\\,\\\\Omega \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 502{,}7\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 12{,}5\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 0{,}25\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 15,
"question_title": "Pour \\\\( R = 50\\\\,\\\\Omega \\\\), \\\\( X_L = 502{,}7\\\\,\\\\Omega \\\\), \\\\( X_C = 49{,}7\\\\,\\\\Omega \\\\), quelle est l’impédance totale \\\\( Z \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "On a \\\\( Z = \\\\sqrt{50^2 + (502{,}7 - 49{,}7)^2} = \\\\sqrt{2500 + 453^2} \\\\approx 456\\\\,\\\\Omega \\\\).",
"answers": [
{
"answer_title": "\\\\( 456\\\\,\\\\Omega \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 50\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 553\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 452\\\\,\\\\Omega \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 16,
"question_title": "Si \\\\( E_{max} = 10\\\\,\\\\mathrm{V} \\\\) et \\\\( Z = 456\\\\,\\\\Omega \\\\), quel est le courant maximal \\\\( I_{max} \\\\) ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Le courant maximal est \\\\( I_{max} = \\\\frac{10}{456} \\\\approx 0{,}022\\\\,\\\\mathrm{A} \\\\).",
"answers": [
{
"answer_title": "\\\\( 0{,}022\\\\,\\\\mathrm{A} \\\\)",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "\\\\( 0{,}10\\\\,\\\\mathrm{A} \\\\)",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "\\\\( 0{,}045\\\\,\\\\mathrm{A} \\\\)",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "\\\\( 0{,}0022\\\\,\\\\mathrm{A} \\\\)",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 17,
"question_title": "Dans un circuit RLC série, si \\\\( R = 0 \\\\), que se passe-t-il pour l’amplitude des oscillations ?",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Sans résistance, il n’y a pas d’amortissement : l’amplitude reste constante.",
"answers": [
{
"answer_title": "Elle reste constante.",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Elle augmente.",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "Elle diminue exponentiellement.",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "Elle devient nulle immédiatement.",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 18,
"question_title": "Dans un circuit RLC série, l’énergie est stockée alternativement dans :",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "L’énergie oscille entre le champ électrique du condensateur et le champ magnétique de la bobine.",
"answers": [
{
"answer_title": "Le condensateur et la bobine.",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "La résistance uniquement.",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "La source de tension uniquement.",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "Le condensateur uniquement.",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 19,
"question_title": "Dans un circuit RLC série, la résistance a pour effet principal de :",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "La résistance dissipe l’énergie sous forme de chaleur et provoque l’amortissement des oscillations.",
"answers": [
{
"answer_title": "Dissiper l’énergie et amortir les oscillations.",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Augmenter la fréquence propre.",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "Stocker l’énergie.",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "Créer un champ magnétique.",
"is_correct": false,
"answer_order": 4
}
]
},
{
"question_order": 20,
"question_title": "Dans un circuit RLC série, si \\\\( X_L = X_C \\\\), alors :",
"question_type": "single_choice",
"question_mark": 1,
"answer_required": true,
"randomize_question": false,
"show_question_mark": true,
"question_description": "",
"question_explanation": "Quand \\\\( X_L = X_C \\\\), l’impédance est minimale et égale à la résistance \\\\( R \\\\).",
"answers": [
{
"answer_title": "L’impédance est minimale.",
"is_correct": true,
"answer_order": 1
},
{
"answer_title": "Le courant est nul.",
"is_correct": false,
"answer_order": 2
},
{
"answer_title": "La tension aux bornes de la résistance est nulle.",
"is_correct": false,
"answer_order": 3
},
{
"answer_title": "La fréquence propre est nulle.",
"is_correct": false,
"answer_order": 4
}
]
}
]
}