A transformer is an electrical device that takes electricity of one voltage and changes it into another voltage. You'll see transformers at the top of utility poles and even changing the voltage in a toy train set.

Basically, a transformer changes electricity from high to low voltage using two properties of electricity. In an electric circuit, there is magnetism around it. Second, whenever a magnetic field changes (by moving or by changing strength) a voltage is made. Voltage is the measure of the electric force or pressure that pushes ele ....etc

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working model on bamboo drip irrigation system

Bamboo drip irrigation system

Introduction

For more than 200 years tribal farmers of the north-eastern part of India, in the state of Megalaya, have been using an indigenous technique of bamboo drip irrigation to irrigate their plantation crops. These farmers of the Jaintia and Khasi hill areas have developed this system of tapping springs and stream water to grow betal leaves, black pepper and arecanut (3).

Terrain and water availability

The topology of the region is hilly with ....etc

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Water is a constant on any gardener s mind. If you re ready to take your first stab at organic gardening, be thinking about how you ll water your plants before that garden is even a twinkle in your eye. Vegetable gardens need about 1 inch of water each week. That s about a tuna fish can full, for every little bit of soil surface. Which, depending on the size of your garden, can be a lot! Gardeners take many approaches to getting their plants watered, which we ll cover shortly. For now, there are some hard and fast rules about the right way ....etc

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To get full information or details of working model of drip irrigation system please have a look on the pages

http://seminarsprojects.net/Thread-drip-irrigation-and-clogging-in-drip-irrigation-full-report

http://seminarsprojects.net/Thread-bamboo-drip-irrigation-system-wikipedia

http://seminarsprojects.net/Thread-microcontroller-based-automation-of-drip-irrigation-system

http://seminarsprojects.net/Thread-microcontroller-based-automation-of-drip-irrigation-system?pid=68825#pid68825

if you again feel trouble on working model of drip irriga ....etc

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I need guidance for making a working model on anti collision of trains
( how to make, materials required etc). I need it as early as possible. ....etc

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Abstract

In the field of agriculture, use of proper method of irrigation is important because the main reason is the lack of rains & scarcity of land reservoir water. The continuous extraction of water from earth is reducing the water level due to which lot of land is coming slowly in the zones of un-irrigated land.Another very important reason of this is due to unplanned use of water due to which a significant amount of water goes waste. For this purpose; we use this automatic plant irrigation system. The system derives power from solar energ ....etc

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please visit

Working Model of Transformer

INTRODUCTION

The transformer is a device used for converting a low alternating voltage to a high alternating voltage or a highalternating voltage into a low alternating voltage

PRINCIPLE

It is based on the principle of mutual induction that is if a varying current is set-up in a circuit induced e.m.f. isproduced in the neighboring circuit. The varying current in acircuit produce varying magnetic flux which induces e.m.f. inthe neighboring circuit

STEP-DOWN ....etc

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how to make working model of railway signal using electro magnet ....etc

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Drip irrigation is today s need because Water nature s gift to mankind is not unlimited and free forever. World water resources are fast diminishing. The one and only answer to this problem is Jain Drip Irrigation Systems. Jain Drip the name which you can trust, the only manufacturer of all drip irrigation components.

After detailed study of inter relationship among soil, water, crop, land terrain and related agro climatic conditions, Jains designed a suitable and economically viable system to deliver a measured quantity of water at th ....etc

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To get full information or details of working models on irrigation please have a look on the pages

http://seminarsprojects.net/Thread-microcontroller-based-automation-of-drip-irrigation-system?pid=16644&mode=threaded

if you again feel trouble on working models on irrigation please reply in that page and ask specific fields in working models on irrigation ....etc

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