{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# La loi d’Ohm (version élève, linregress et sans fonction)\n",
    "\n",
    "\n",
    "Mathilde, élève de 2nde, souhaite tracer la caractéristique d’un dipôle ohmique, c’est-à-dire la courbe donnant les valeurs de la tension aux bornes du dipôle ohmique en fonction des valeurs de l’intensité du courant qui le traverse.\n"
   ]
  },
  {
   "cell_type": "raw",
   "metadata": {
    "raw_mimetype": "text/restructuredtext"
   },
   "source": [
    ":download:`Télécharger le pdf <./loi_ohm_eleve_linregress_sans_fonction.pdf>`\n",
    "\n",
    ":download:`Télécharger le notebook <./loi_ohm_eleve_linregress_sans_fonction-download.ipynb>`\n",
    "\n",
    ":download:`Lancer le notebook sur binder (lent) <https://mybinder.org/v2/gl/pyspc%2Fpyspc/master?filepath=07-activites%2F02-seconde%2Floi_d_ohm%2Floi_ohm_eleve_linregress_sans_fonction.ipynb>`"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Elle a schématisé le circuit de son expérience :\n",
    "\n",
    "![circuit.png](circuit.png)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "1. Dans la cellule ci-dessous, indiquer la signification des symboles X et Y et le nom des bornes 1, 2, 3, 4."
   ]
  },
  {
   "cell_type": "raw",
   "metadata": {},
   "source": [
    "X :         1 :             2 :\n",
    "Y :         3 :             4 :\n"
   ]
  },
  {
   "attachments": {
    "tableau.png": {
     "image/png": 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"
    }
   },
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Mathilde relève les mesures expérimentales suivantes : \n",
    "\n",
    "![tableau.png](tableau.png)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "2. Aider Mathilde à coder la deuxième ligne du tableau de valeurs dans la cellule vide ci-dessous en vous aidant du code de la première ligne (attention les valeurs de l'intensité y ont été converties en ampère)."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import matplotlib.pyplot as plt\n",
    "%matplotlib inline"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# array signifie tableau en anglais\n",
    "I=np.array([0,25e-3,50e-3,75e-3,100e-3,125e-3])\n",
    "print (I)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "3. Mathilde veut maintenant afficher la caractéristique « intensité-tension » du dipôle ohmique en respectant les consignes suivantes :\n",
    "\n",
    "    - axe des abscisses (horizontal) : Intensité I (mA)\n",
    "    - axe des ordonnées (vertical) : Tension U(V)\n",
    "    - points expérimentaux : croix + de couleur rouge \n",
    "    - Titre: \"Caractéristique Intensité-Tension d’un dipôle ohmique\"\n",
    "\n",
    "Les cellules ci-dessous contiennent chacune une ligne du code nécessaire à l'affichage de la caractéristique. \n",
    "Exécuter chaque cellule au fur et à mesure afin de comprendre leur utilité. Noter si besoin des commentaires dans les cellules laissées vides à cet effet."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "fig = plt.figure(figsize=(12,10))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "commentaire :"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "plt.plot(I,U)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "commentaire : "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "plt.plot(I,U,'r+')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "plt.plot(I,U,'r+')\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "commentaire : "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "plt.plot(I,U,'r+',label='U=f(I)')\n",
    "plt.legend()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "commentaire : "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "plt.xlabel(\"intensité I (A)\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "commentaire : "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "plt.ylabel(\"tension U (V)\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "commentaire : "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "plt.grid()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "commentaire : "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "plt.title(\"Caractéristique Intensité-Tension \"\n",
    "          \"d’un dipôle ohmique\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "commentaire : "
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "4. Exécutez maintenant le programme en entier! "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import matplotlib.pyplot as plt\n",
    "%matplotlib inline\n",
    "I=np.array([0,25e-3,50e-3,75e-3,100e-3,125e-3]) \n",
    "U=np.array([0,1.7,3.4,5.1,6.8,8.5])\n",
    "fig = plt.figure(figsize=(12,10))\n",
    "plt.plot(I,U,'r+',label='U=f(I)')\n",
    "plt.legend()\n",
    "plt.xlabel(\"intensité I (A)\")\n",
    "plt.ylabel(\"tension U (V)\")\n",
    "plt.grid()\n",
    "plt.title(\"Caractéristique Intensité-Tension \"\n",
    "          \"d’un dipôle ohmique\")\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5. Il s'agit maintenant de modéliser la courbe obtenue."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.1. Quelle est la forme de la courbe obtenue?"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.2. Quelle est l'équation mathématique d'une telle courbe?"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.3. Exécutez le programme ci-dessous permettant de modéliser la courbe obtenue par une droite."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from scipy import stats\n",
    "slope, intercept, r_value, p_value, std_error = stats.linregress(I, U)\n",
    "print ('slope {0:.2f}'.format(slope))\n",
    "print('intercept {0:.2f}'.format(intercept))\n",
    "Umodel = slope*I+intercept\n",
    "print('U= {0:.2f}'.format(slope),'x I')\n",
    "print ('Le coefficient de corrélation r vaut {0:.4f}'.format(r_value))\n",
    "print('Les valeurs de la tension modélisée sont',Umodel)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.3.1. Que représente l'objet slope ?"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.3.2. Que représente l'objet intercept ?"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.4. Affichez la droite modélisée grâce au programme ci-dessous."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "fig = plt.figure(figsize=(12,10))\n",
    "plt.plot(I,U,'r+',label='U=f(I)')\n",
    "plt.plot(I,Umodel,'b',label='modèle linéaire')\n",
    "plt.legend()\n",
    "plt.xlabel(\"intensité I (A)\")\n",
    "plt.ylabel(\"tension U (V)\")\n",
    "plt.grid()\n",
    "plt.title(\"Caractéristique Intensité-Tension \"\n",
    "          \"d’un dipôle ohmique\")\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.4.1. La tension U et l’intensité I sont-elles proportionnelles ? Pourquoi ?"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.4.2. Que remarquez-vous à propos de la valeur du coefficient directeur de la droite?"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "   5.4.3. En déduire une formule appelée loi d'Ohm entre la tension U, l’intensité I et la résistance électrique R du dipôle ohmique."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": []
  }
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