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what is the main component of an electronic device?  Transistor is the main component of all devices and circuits.This is by semiconductor and work as a switching in your device or circuit. All the circuits are not possible to make without transistor. The above image shows D882 Transistor this transistor is very common to use and very low price in local market this Transistor price is only 5 Rs this is very chip price. By using this Transistor you can make a simple inverter at your home. Simple inverter Circuit diagram So you can see the above diagram is present a simple circuit connections that's show how to make inverter :- Components: 1. D882/BD140 transistor. 2. 220 ohm resistance. 3. 1K resistance. 4. 100uf capacitor. 5. Mobile Charger Transformer. 6. 3v battery. 7. Bulb Holder. 8. Connecting wires. For making this circuit you can also use BD140 Transistor  BD140 Transistor is best for this circuit and give more out put. This Transistor price in local market is 10 Rs so this i

  What is Digital farming? How do farmers usually do farming? As we all know that farming is very difficult for the farmer. And they cultivate with great difficulty. Farmers usually use plows and tractors to do farming and continue to cultivate in the sun throughout the day. They have to face a lot of problems by doing farming in this way. And he also invest a lot of his money but he does not get much benefit. And in this way they use a lot of water and also use medicines so that their crops do not get worms. And this also increase their expenses a lot. And those who are lower class farmers have to face a lot of problems. They also have to face many diseases caused by sunlight. What kind of loss dose the farmers suffer from such farming? If the sun becomes too much in summer, their crop gets spoiled. Their crop dries up, ruining all their hard work. But there are many crops which get spoiled due to less sunlight. This causes a lot of hardship to the farmers. Sometimes, excessive rainfa