Added Coulombs Law Calculator (#1964)

Rakesh9100 · Jan 3, 2025 · c96d011 · c96d011
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diff --git a/Calculators/Coulombs-Law-Calculator/README.md b/Calculators/Coulombs-Law-Calculator/README.md
@@ -0,0 +1,55 @@
+#  <p align="center">Coulombs Law Calculator</p>
+
+## Description :-
+
+This project is a web-based calculator that implements **Coulomb's Law**:
+
+\[ F = k \frac{q_1 \cdot q_2}{r^2} \]
+
+It allows users to calculate the force between two charges (\( F \)) based on:
+
+- Charge 1 (\( q_1 \))
+- Charge 2 (\( q_2 \))
+- Distance between the charges (\( r \))
+
+The value of \( k \) (Coulomb's constant) is also displayed:
+\[ k = 8.987 \times 10^9 \, \text{N·m}^2/\text{C}^2 \]
+
+## Tech Stacks :-
+
+- HTML
+- CSS
+- JavaScript
+
+## Features :-
+
+- **Dynamic Formula Display**: The formula and constant are displayed in LaTeX for clarity.
+- **Real-Time Results**: Automatically calculates the force when valid inputs are provided.
+- **Modern UI**: A responsive design with a stylish dark blue card background.
+- **Error Handling**: Ensures inputs are valid and displays appropriate error messages.
+
+## How to Use :-
+
+1. Enter the values for:
+   - Charge 1 (\( q_1 \)) in Coulombs (C)
+   - Charge 2 (\( q_2 \)) in Coulombs (C)
+   - Distance (\( r \)) between charges in meters (m).
+2. Click the **Calculate** button to compute the force (\( F \)).
+3. Click the **Clear** button to reset the inputs and results.
+
+### Example Calculation :-
+
+#### Case:
+- \( q_1 = 2 \, \text{C} \)
+- \( q_2 = 3 \, \text{C} \)
+- \( r = 0.5 \, \text{m} \)
+
+#### Output:
+- Force (\( F \)):
+  \[
+  F = \frac{k \cdot q_1 \cdot q_2}{r^2} = \frac{8.987 \times 10^9 \cdot 2 \cdot 3}{0.5^2} = 2.157 \times 10^{11} \, \text{N}
+  \]
+
+## Screenshots :-
+
+![image](https://github.com/user-attachments/assets/5ebb2959-94a2-4be8-bbe3-72fac99e44d5)
diff --git a/Calculators/Coulombs-Law-Calculator/assets/background.webp b/Calculators/Coulombs-Law-Calculator/assets/background.webp
diff --git a/Calculators/Coulombs-Law-Calculator/index.html b/Calculators/Coulombs-Law-Calculator/index.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" href="style.css">
+    <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
+    <script src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
+    <title>Coulombs Law Calculator</title>
+</head>
+
+<body>
+    <div class="calculator">
+        <h1>Coulomb's Law Calculator</h1>
+        <p class="formula">
+            Formula:
+            <span id="latex-formula">\( F = k \frac{q_1 \cdot q_2}{r^2} \)</span>
+        </p>
+        <p class="constant">
+            Where \( k = 8.987 \times 10^9 \, \text{N·m}^2/\text{C}^2 \)
+        </p>
+
+        <label for="q1">Charge 1 (\( q_1 \)) (C):</label>
+        <input type="number" id="q1" placeholder="Enter Charge 1">
+
+        <label for="q2">Charge 2 (\( q_2 \)) (C):</label>
+        <input type="number" id="q2" placeholder="Enter Charge 2">
+
+        <label for="r">Distance (\( r \)) (m):</label>
+        <input type="number" id="r" placeholder="Enter Distance">
+
+        <div class="buttons">
+            <button onclick="calculateForce()">Calculate</button>
+            <button onclick="clearInputs()">Clear</button>
+        </div>
+        <div class="result" id="result"></div>
+    </div>
+
+    <script src="script.js"></script>
+</body>
+
+</html>
diff --git a/Calculators/Coulombs-Law-Calculator/script.js b/Calculators/Coulombs-Law-Calculator/script.js
@@ -0,0 +1,22 @@
+function calculateForce() {
+    const q1 = parseFloat(document.getElementById('q1').value);
+    const q2 = parseFloat(document.getElementById('q2').value);
+    const r = parseFloat(document.getElementById('r').value);
+
+    if (isNaN(q1) || isNaN(q2) || isNaN(r) || r <= 0) {
+        document.getElementById('result').innerText = "Please enter valid numbers for all fields, and ensure distance is greater than zero.";
+        return;
+    }
+
+    const k = 8.9875517923e9; // Coulomb's constant in N·m²/C²
+    const force = (k * q1 * q2) / (r ** 2);
+
+    document.getElementById('result').innerText = `Force (F): ${force.toFixed(2)} N`;
+}
+
+function clearInputs() {
+    document.getElementById('q1').value = '';
+    document.getElementById('q2').value = '';
+    document.getElementById('r').value = '';
+    document.getElementById('result').innerText = '';
+}
diff --git a/Calculators/Coulombs-Law-Calculator/style.css b/Calculators/Coulombs-Law-Calculator/style.css
@@ -0,0 +1,93 @@
+body {
+    font-family: 'Roboto', sans-serif;
+    background-image: url('assets/background.webp');
+    background-size: cover;
+    margin: 0;
+    padding: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    color: #fff;
+    height: 100%;
+    min-height: 100vh;
+}
+
+.calculator {
+    background: #0d47a1; /* Dark blue background */
+    padding: 30px;
+    border-radius: 10px;
+    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
+    width: 400px;
+    text-align: center;
+}
+
+h1 {
+    font-size: 28px;
+    margin-bottom: 20px;
+    color: #ffeb3b;
+}
+
+.formula {
+    font-size: 16px;
+    margin-bottom: 10px;
+    color: #ffcc80;
+}
+
+.constant {
+    font-size: 14px;
+    margin-bottom: 20px;
+    color: #ffcc80;
+}
+
+label {
+    font-size: 14px;
+    margin: 10px 0 5px;
+    display: block;
+    text-align: left;
+    color: #bbdefb;
+}
+
+input {
+    width: calc(100% - 20px);
+    padding: 10px;
+    margin-bottom: 15px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+.buttons {
+    display: flex;
+    justify-content: space-between;
+}
+
+button {
+    background-color: #29b6f6;
+    color: white;
+    padding: 12px 20px;
+    border: none;
+    border-radius: 5px;
+    font-size: 16px;
+    cursor: pointer;
+    margin: 5px;
+    flex: 1;
+}
+
+button:hover {
+    background-color: #0288d1;
+}
+
+button:last-child {
+    background-color: #f44336;
+}
+
+button:last-child:hover {
+    background-color: #d32f2f;
+}
+
+.result {
+    margin-top: 20px;
+    font-size: 18px;
+    font-weight: bold;
+    color: #fff;
+}
diff --git a/calculators.json b/calculators.json
@@ -557,6 +557,12 @@
         "link": "./Calculators/Cost-Of-Living-Calculator/index.html",
         "source": "https://github.com/Rakesh9100/CalcDiverse/tree/main/Calculators/Cost-Of-Living-Calculator"
     },
+    {
+        "title": "Coulombs Law Calculator",
+        "description": "Computes the force between two charges based on Coulomb's Law.",
+        "link": "./Calculators/Coulombs-Law-Calculator/index.html",
+        "source": "https://github.com/Rakesh9100/CalcDiverse/tree/main/Calculators/Coulombs-Law-Calculator"
+    },
     {
         "title": "Credit Card Payoff Calculator",
         "description": "Calculates the time in which you can payoff your Credits.",