Скачать или смотреть Infrared Intruder Alarm Project | Physics Investigatory using Bulbs & LEDs (Class 12) | Amazon Finds

In this video, I explain a Infrared Intruder Alarm electronic project using LED, bulb and IR sensor, perfect for a Physics investigatory project (Class 11/12).

We cover:
✅ Basic principle of infrared intruder alarm
✅ Circuit diagram and components (IR LED, photodiode/LDR, bulb, resistors, transistor, buzzer/LED)
✅ How the alarm detects an intruder
✅ Step-by-step circuit connections
✅ Observations, working explanation and result
✅ Tips for investigatory file, readings and viva questions

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✍️ Comment below if you want:
– Circuit diagram / components list PDF
– Sample Physics investigatory file format
– Viva questions for Infrared Intruder Alarm

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This project is ideal for CBSE / ICSE / State Board Physics students looking for a working, impressive and practical electronics project.

📌 Topics covered in this video:
00:00 – Introduction
00:40 – Principle of Infrared Intruder Alarm
02:00 – Circuit components and block diagram
04:00 – Circuit wiring and demonstration
07:00 – How the alarm works when someone crosses the beam

Welcome to Ontex Electronics. We are here to provide you variety of School and College Working Models and Projects for all levels. We have large number of projects and kids available to your door step. If you have a unique idea and not getting all spares and components you can talk with us so we arrange for you. The circuits can be made either on PCB or Breadboards. The complex circuits are easy for our trained professionals. The more project you buy the more discount you will get. We deal in physics investigatory projects, biology projects, chemistry projects, mathematics projects, Engineering Level working projects, Thesis, Project Files, Charts etc at your door step. We can courier you the project same day so it will reach on time. We also provide training to make projects to students so they can learn practically with theory.