Series Resistor Connection Experiment

https://youtu.be/SgD3Esr6t40?si=oDzhSsEjABXCOUXv Series Resistor Connection Experiment – Interactive Calculator & Full Explanation { "@context": "https://schema.org/", "@type": "EducationalOccupationalProgram", "name": "Series Resistor Connection Experiment", "description": "Detailed explanation of the series resistor experiment with an interactive calculator for voltage and resistance values.", "provider": { "@type": "Organization", "name": "Physics Laboratories Initiative" } } body { font-family: 'Segoe UI', sans-serif; background: #f5f7fa; margin: 0; padding: 15px; color: #333; line-height: 1.7; } .container { max-width: 900px; margin: auto; background: #fff; border-radius: 12px; padding: 20px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); } h1, h2 { color: #004080; margin-top: 15px; text-align: left; } h1 { font-size: 24px; } h2 { font-size: 20px; } label { font-weight: bold; display: block; margin-top: 10px; } input, select { width: 100%; padding: 10px; margin: 6px 0; font-size: 1em; border: 1px solid #ccc; border-radius: 6px; text-align: center; } ul { padding-left: 20px; } table { width: 100%; border-collapse: collapse; margin-top: 15px; background: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.1); } th, td { border: 1px solid #ccc; padding: 8px; text-align: center; } th { background: #004080; color: #fff; } tr:nth-child(even) { background: #f2f6fc; } .result { font-weight: bold; color: #006600; } .warning { color: red; font-weight: bold; margin-top: 10px; text-align: center; } .links { text-align: center; margin: 30px auto; max-width: 500px; } .links div { padding: 15px; border-radius: 12px; margin: 10px 0; box-shadow: 0 4px 10px rgba(0,0,0,0.08); } @media (max-width: 600px) { table, thead, tbody, tr, th, td { display: block; } tr { margin-bottom: 15px; padding: 10px; border-radius: 10px; background: #fff; } th { background: none; color: #333; } td { border: none; text-align: left; } } 🎯 Objective Study the characteristics of resistors connected in series. Verify that the current is the same across all resistors. Verify that the sum of voltage drops equals the source voltage. Calculate the equivalent resistance of resistors in series. 🛠️ Required Equipment DC power supply (battery or DC source) Three known resistors (R1, R2, R3) Connecting wires Electric switch Voltmeter and ammeter 🔬 Interactive Calculator Enter total current (I): A (Ampere) mA (Milliampere) Enter source voltage (Vs) in volts: Resistor Voltage (V) Resistance (Ω) R1 - R2 - R3 - Total Resistance Rt - Sum of Voltages - 🔗 Experiment File 🧪 Virtual Lab 📱 Android Circuit Simulator function calculate() { let I = parseFloat(document.getElementById("current").value); let unit = document.getElementById("unit").value; let Vs = parseFloat(document.getElementById("vs").value); if (unit === "mA") I = I / 1000; let v1 = parseFloat(document.getElementById("v1").value); let v2 = parseFloat(document.getElementById("v2").value); let v3 = parseFloat(document.getElementById("v3").value); let r1 = v1 && I ? (v1 / I).toFixed(2) : "-"; let r2 = v2 && I ? (v2 / I).toFixed(2) : "-"; let r3 = v3 && I ? (v3 / I).toFixed(2) : "-"; document.getElementById("r1").innerText = r1; document.getElementById("r2").innerInnerText = r2; document.getElementById("r3").innerText = r3; let rt = 0; if (r1 !== "-") rt += parseFloat(r1); if (r2 !== "-") rt += parseFloat(r2); if (r3 !== "-") rt += parseFloat(r3); document.getElementById("rt").innerText = rt > 0 ? rt.toFixed(2) : "-"; let vsum = 0; if (!isNaN(v1)) vsum += v1; if (!isNaN(v2)) vsum += v2; if (!isNaN(v3)) vsum += v3; document.getElementById("vsum").innerText = vsum > 0 ? vsum.toFixed(2) : "-"; let check = document.getElementById("check"); if (!isNaN(Vs) && vsum > 0) { if (Math.abs(Vs - vsum) < 0.01) { check.style.color = "green"; check.innerText = "✔️ Sum of voltages equals the source voltage."; } else { check.style.color = "red"; check.innerText = "⚠️ Sum of voltages does NOT equal the source voltage."; } } else { check.innerText = ""; } }