In electronics, a logic gate is an idealized or physical device implementing a Boolean function; that is, it performs a logical operation on one or more logical inputs, and produces a single logical output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device (see Ideal and real op-amps for comparison).

Logic gates are primarily implemented using diodes or transistors acting as electronic switches, but can also be co ....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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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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how to make working model of railway signal using electro magnet ....etc

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FOR THE BODY OF THE ROBOT
- Cardboard box (the harder the better, I used a pizza box but you can used any type because we are going to reinforced with the duct tape)
- Scotch Duct tape (I like the silver because the ....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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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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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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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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