Ellipse Construction | General Method | Tangent & Normal | Engineering Graphics

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🧠 What you will learn in this video 📚

🔹 Ellipse क्या है और इसकी Eccentricity (value less than 1) का सही meaning
🔹 Focus–Directrix property of Ellipse
🔹 Eccentricity Method / General Method explained step by step
🔹 Vertex locate करने की आसान trick (e = a / b concept)
🔹 Step-by-step Ellipse construction (10 mm spacing technique)
🔹 Smooth curve drawing technique (manual & French curve)
🔹 Ellipse पर किसी point पर Tangent और Normal कैसे बनाएं
🔹 Exam-oriented tips (common mistakes students make)

🛠️ Topics Covered 🧩

📌 Definition of Ellipse using eccentricity
📌 Difference between Ellipse, Parabola and Hyperbola
📌 Location of Focus, Directrix, Axis and Vertex
📌 Construction using arcs (1–1 dash, 2–2 dash method)
📌 Proper curve joining technique
📌 Tangent and Normal construction on Ellipse

🎯 Who should watch this video?

👨‍🎓 Class 11 and 12 students
👨‍🏫 Engineering Graphics learners
🧑‍🎓 Diploma / Polytechnic students
📝 Competitive exam aspirants

👉 This video is useful for students of the following Indian Technical Universities:

🔹 JNTU, SPPU, RGPV, CSVTU, MU
🔹 AKTU / UPTU, VTU, GTU
🔹 Anna University, KTU, RTU
🔹 IITs, NITs and other B.Tech colleges

📌 Applicable to almost all Indian universities where Engineering Graphics / Technical Drawing is part of the B.Tech curriculum.

💡 Why this video is important?

✔ Eccentricity method made easy
✔ Concept plus construction clarity
✔ Suitable for exam as well as teaching
✔ One-time strong understanding of Ellipse

📝 Important Exam Tip ⚠️

✍️ Curve drawing should be smooth and tangential
❌ Zig-zag or bar marking leads to marks deduction
✅ Use proper point notation like P1, P2, P3

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