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  Buck boost converter  A Buck-Boost converter is a type of DC-DC converter that can both step up and step down a DC voltage. It is also called an inverting regulator. The buck-boost converter is widely used in applications where the input voltage may vary widely, such as battery-operated devices. The operation of a Buck-Boost converter can be divided into two modes: Buck mode and Boost mode. In Buck mode, the input voltage is higher than the output voltage. The converter operates by turning on a switch (typically a MOSFET) to allow current to flow from the input source through an inductor to the output load. The inductor stores energy during the switch-on time and releases it to the output load during the switch-off time. The output voltage is determined by the ratio of the on-time to the off-time of the switch. In Boost mode, the input voltage is lower than the output voltage. The converter operates by charging an inductor with current from the input source during the switch...

               Sine wave inverter                 Introduction: A sine wave inverter is a type of power inverter that generates an AC waveform with a pure sine wave output. This type of inverter is commonly used in applications where high-quality power is required, such as in sensitive electronics or medical equipment. Working Principle: The basic principle behind a sine wave inverter is to convert DC power from a battery or other source into AC power with a pure sine wave output. This is achieved through a series of electronic components and circuits that work together to create the desired waveform. The first component in a sine wave inverter is a DC to DC converter, which converts the DC power from the battery into a higher voltage DC power that can be used to generate the AC waveform. This higher voltage DC power is then fed into a series of switches that turn on and off at specific intervals to cre...

 This is video in showing the Surya Kiran formation, this formation in pilots use hawk aircraft to show the air formation . In this show total 10 to 12 hawk are used and the work as a team in air with aircraft the pilot has full control to aircraft. The hawk in training aircraft, it's mean they used to train the pilot in academy. And also use in air show to say " don't fear to enemy because we are here to protect you " . ✂  ✂. ✂. ✂. ✂. ✂. ✂. ✂. ✂. ✂. ✂. ✂. ✂.  You know about aircraft or creative knowledge  then follow me 

  what is python? the python created by "Guido Van Rossum (dutch programmer)in 1991.                       ♦   It is used for:  web development (server-side), software development, mathematics, system scripting it is object oriented programming language open source programming  language interpreted language high level language for what to do instead of how to do Easy to learn portable why python?  work on different platform [Linux, window ] syntax similar to English code in fever line execution speed can be Treated in a procedural way libraries what python used for? Python is a computer programming language often used to build websites and software, automate tasks, and conduct data analysis . Python is a general-purpose language, meaning it can be used to create a variety of different programs and isn't specialized for any specific problems.   Good to know The most recent major version of Pyt...

  OPERATION SAFED SAGAR Operation Safed Sagar was the code name assigned to the Indian Air Force's strike to support  the Ground troops during Operation Vijay that was aimed to flush out Regular and Irregular troops of the  Pakistani Army from Indian Positions in the Kargil sector along the Line of Control. It was the first large scale  use of air power in the Jammu and Kashmir region since the Indo-Pakistan War of 1971. Ground Operations Initial infiltrations were noticed in Kargil in early May, 1999.  Because of the extreme winter weather in Kashmir it was common  practice for the Indian and Pakistani Army to abandon forward posts  and reoccupy them in the spring. That particular spring, the Pakistan  Army reoccupied the forward posts before the scheduled time not only  theirs but also the posts which belonged to India, in a bid to capture  Kashmir. By the second week of May, an ambush on an Indian army patrol acting on a tip- off by a...

  An  operational amplifier  (often  op amp  or  opamp ) is a  DC-coupled  high- gain  electronic voltage  amplifier  with a  differential input  and, usually, a  single-ended  output. [1]  In this configuration, an op amp produces an output potential (relative to circuit ground) that is typically 100,000 times larger than the potential difference between its input terminals. Operational amplifiers had their origins in  analog computers , where they were used to perform mathematical operations in linear, non-linear, and frequency-dependent circuits. Electronic symbol The popularity of the op amp as a building block in analog circuits is due to its versatility. By using negative feedback, the characteristics of an op-amp circuit, its gain, input and output impedance, bandwidth etc. are determined by external components and have little dependence on temperature coefficients or engineering tolerance in the...

 FARADES LOW Any change in the magnetic environment of a coil of wire will cause a voltage (emf) to be "induced" in the coil. No matter how the change is produced, the voltage will be generated. The change could be produced by changing the magnetic field strength, moving a magnet toward or away from the coil, moving the coil into or out of the magnetic field, rotating the coil relative to the magnet, etc. Faraday's law is a fundamental relationship which comes from  Maxwell's equations . It serves as a succinct summary of the ways a  voltage  (or emf) may be generated by a changing magnetic environment. The induced emf in a coil is equal to the negative of the rate of change of  magnetic flux   times the number of turns in the coil. It involves the interaction of charge with magnetic field. 

Basic Definitions Mass It is quantity of matter contained in a body. It does not depend upon gravitational force. The  fundamental unit of mass is the Kilogram (kg). Weight Weight is the force exerted by gravity. Weight of body is dependent upon gravitational force, so it is  not constant. Weight = Mass x Gravitational acceleration W =m g Force It is push or pull acting on a body which changes or tends to change the state of rest or uniform motion of the body. As per Newton's second law of motion Force ∝ acceleration F= m a  In SI unit (International system), unit of mass is kg and unit of acceleration is m/s2 and unit of the force is Newton (N). When m = 1 kg, and a = 1 m/s then F = 1 N. 1 N: When unit mass is given unit acceleration then the force produced is 1 N. Pressure It is the force exerted by fluid (liquid or gas) on unit area. It is a property of fluid.  Pressure=Force/Area=N/m² The unit of pressure is known as Pascal (Pa) or N/m2 1 Pa = 1 N/m2 Other comm...

  You can reduce the charging time of the phone by 20%  It doesn't have its fast charging battery.  It often supports fast charging of the phone, but it does not charge fast.  You can eliminate this charging problem by changing one of the phone's settings.  Changing this setting will reduce the charging time by 20%.  The phone has a secret setting  The setting associated with fast charging is a secret in the phone.  This setting is in the developer option of the phone.  To apply this setting, first go to the phone's Settings and go to 'About phone'.  At the bottom, tab the Build number 7-8 times.  Then comes Developer options.  This option has several secret settings related to the phone.  Follow these steps  When Cone's Developer options come up, open it.  It will be found at the bottom of the phone's Settings at the top of the About phone.  Turn it ON from the top right.  Now in the Developer options,...

 Solar system Our solar system consists of our star, the Sun, and everything bound to it by gravity — the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune, dwarf planets such as Pluto, dozens of moons and millions of.  asteroids, comets and meteoroids. Sun The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as visible light and infrared radiation. It is by far the most important source of energy for life on Earth. Mercury Mercury is the smallest planet in the Solar System and the closest to the Sun. Its orbit around the Sun takes 87.97 Earth days, the shortest of all the Sun's planets. It is named after the Roman god Mercurius (Mercury), god of commerce, messenger of the gods, and mediator between gods and mortals, corresponding to the Greek god Hermes (Ἑρμῆς). Like Venus, Mercury orbits the Sun within Earth's orbi...

 Culture means 'the art of living', according to the changing coincidence in the country or society from time to time, the culture of different societies is formed by changes in social life, social policy, etc.  Culture means the product of human mind and the habits of human society, values, ethics, religious tradition, living and living, and the ideals that lead life to the highest purpose, can also be called) Heritage of Indian Culture.  "Legacy means the invaluable gift we received from our ancestors. The history of India is thousands of years old. In the daily pledge that goes to school, we say" I love my country and it is proud of its prosperity and multiple traditions. " 2) Cultural Heritage of India  India has gifted the world a diverse and rich heritage. Cultural heritage means that human inherited heritage is what human beings achieved through their intelligence, skill and art skills which they created, it is called cultural heritage. From Aryans to Sh...

Black Forest Pastry Recipe Card British cuisine has always been a multicultural - a pot pourri of eclectic styles. However Britain's culinary expertise is not new! In the past British cooking was amongst the best in the world. Traditional British cuisine is substantial, yet simple and wholesome.  British cuisine today has a variety that wipes off the image of grey boiled meat. In London especially, one can not only experiment with the best of British, but the best of the world as there are many distinct ethnic cuisines to sample, Chinese, Indian, Italian and Greek restaurants are amongst the most popular. Prep Time : 0-5 minutes Cook time : 1-1.30 hour Serve : 4 Level Of Cooking : Moderate Taste : Sweet Ingredients for Black Forest Pastry Recipe Dark chocolate sponge 1 Whipped cream 2 cups Fresh cherries pitted, 1 cup + for garnish Sugar 2 tablespoons Lemon juice ½ teaspoon Sugar syrup as required Chocolate shavings 250 grams Method Step 1 Heat a non-stick pan, add cherries, su...

  Great Wall of China (China) Built between the 5th century B.C. and the 16th century, the  Great Wall of China  is a stone-and-earth fortification created to protect the borders of the Chinese Empire from invading Mongols. The Great Wall is actually a succession of multiple walls spanning approximately 4,000 miles, making it the world's longest manmade structure. Christ the Redeemer Statue (Rio de Janeiro) Sam Valadi  via  Flickr Creative Commons BY-NC-ND 2.0 The Art Deco-style  Christ the Redeemer  statue has been looming over the  Brazilians  from upon  Corcovado mountain  in an awe-inspiring state of eternal blessing since 1931. The 130-foot reinforced concrete-and-soapstone statue was designed by Heitor da Silva Costa and cost approximately $250,000 to build - much of the money was raised through donations. The statue has become an easily recognized icon for Rio and Brazil. Machu Picchu (Peru) Bruce Tuten  via  Flickr...