Measure resistance, impedance & determine the inductance of choke coil | NIMI | DIGITAL | MARATHI |

🔧 Measure Resistance, Impedance & Determine the Inductance of Choke Coil – Practical Guide

Welcome back to another real-world training session from NIMI – Government of India, your hands-on learning companion for ITI students, electricians, and future engineers across India!

In today’s practical, we’ll learn how to measure resistance and impedance, and also how to calculate the inductance of a choke coil – a vital component in AC circuits used in power supplies, lighting systems, and electrical filters.

Whether you're an ITI trainee, a budding technician, or prepping for field deployment, this session will strengthen your ability to analyze inductive components safely and accurately using standard testing instruments.

Time Stamp
00: - Title & Introduction
0:16 - Objectives
0:35 - Let us discuss on resistance and impedance of choke coil
2:38 - Let us discuss how to measure resistance in a given choke coil
3:41 - Let us measure the resistance of two coils connected in series
4:48 - Let us measure the resistance of two coils connected in parallel
9:05 - Let us discuss how you find out the impedance and inductance of choke coil in practical
11:35 - Recap

🧠 Concepts Made Easy: What You'll Learn

In simple MARATHI, with live demonstrations and tools like the Multimeter, LCR Meter, and AC power source, you will:

✅ Understand the structure and function of a choke coil
✅ Measure the DC resistance using a multimeter
✅ Measure the impedance (Z) at a given frequency using an LCR meter or by formula
✅ Calculate inductive reactance (XL) using the formula: XL = 2πfL
✅ Determine the inductance (L) from the measured values
✅ Record and verify readings under safe lab conditions
🎥 See It In Action – Video Demo
Watch our YouTube demo to see step-by-step how professionals measure, record, and calculate these values safely and precisely.

📚 Download Worksheets, Circuit Diagrams & Formula Charts
👉 https://linktr.ee/nimichennai

🎓 Why This Skill Matters

Understanding how to measure resistance, impedance, and inductance is critical for diagnosing faults, designing circuits, and maintaining power systems. Whether working in a workshop or a live field environment, this skill will help you troubleshoot and optimize performance in AC-driven electrical systems.

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