Electrical and Technology

Geospatial technology is a term used to describe the range of modern tools contributing to the geographic mapping and analysis of the Earth and human societies. These technologies have been evolving in some form since the first maps were drawn in prehistoric times.  In the 19th century,  the long significant schools of map-making and mapmaking were joined by ethereal photography as early cameras were sent overtop on inflatables and pigeons, and afterward on planes during the twentieth century. The science and specialty of visual understanding and guide making was sped up during the Second World War and during the Cold War it took on new measurements with the appearance of satellites and PCs. Satellites permitted pictures of the Earth's surface and human exercises in that with specific impediments. PCs permitted capacity and move of symbolism along with the advancement of related computerized programming, guides, and informational collections on financial and ecological wonders agg

Hydrogen Energy Hydrogen is the most abundant. Hydrogen gas has remarkable characteristics including colorless, tasteless and invisible that make it hotly pursued. It can also be transformed into a renewable, nonpolluting and zero-emission energy resource. It's viewed as the foundation of the new energy economy. The quest for hydrogen energy started way back in 1776 by the British researcher Henry Cavendish.  He initially recognized it as a particular component after he created hydrogen gas by oppressing zinc metal to hydrochloric corrosive. Henry Cavendish made another wonderful disclosure during an exhibition to the Royal Society of London when he acquainted a sparkle with hydrogen gas, delivering water simultaneously. This noteworthy advancement prompted his decision that water (H2O) is made out of hydrogen and oxygen. From that point forward, hydrogen innovation has filled quickly, and today, it is utilized as a fuel source to control vehicles, electric frameworks, and the crea

 Network Theorem (D.C. Circuits) The applicability of these theorems in different types of d.c. networks (with independent sources as well as with controlled sources). A thorough understanding of each theorem is important because analyzing electrical and electronic circuits needs these theorems very much. Thevenin's theorem This theorem is possibly the most extensively used network theorem. It is applicable where it is desired to determine the current through or voltage across any one element in a network without going through the rigorous method of solving a set of network equations. Statement of Thevenin's Theorem:-   Any two terminal bilateral linear d.c. the circuit can be replaced by an equivalent circuit consisting of a voltage source and a series resistor. Thevenin's Theorem Equivalent Resistance and Voltage Equivalent Circuit Norton's theorem Norton theorem is converse of Thevenin's theorem. It consists of an equivalent voltage source as done in Thevenin'

Programmable Logic Controller A  programmable logic controller  (PLC) or programmable controller is a solid-state/ computerized industrial computer that performs discrete or sequential logic in a factory environment. It was originally developed to replace mechanical relays, timers, counters. PLCs are used successfully to execute complicated control operations in a plant. Its purpose is to monitor crucial process parameters and adjust process operations accordingly. A sequence of instructions is programmed by the user to the PLC memory and when the program is executed, the controller operates a system to the correct operating specifications. The first PLC system evolved from conventional computers in the late 60s and 70s. These first PLCs were installed primarily in automotive plants. Traditionally the auto plant had to be shut down for up to a month at model change over time. the early PLCs were used with other new automation techniques to shorten the changeover time.  The PLC pr