History of electrical engineering and etc.pptx

We find the role of electrical engineering institute

1. History of Electrical Engineering The history of electricity is a fascinating journey spanning centuries of discovery, innovation, and technological advancement. Here's a brief overview: Ancient Discoveries : While electricity as a concept wasn't understood in ancient times, there were observations of natural electrical phenomena, such as lightning and static electricity. Ancient Greeks, Egyptians, and other civilizations noted these occurrences. Early Concepts and Experimentation : The concept of electricity began to take shape in the 17th and 18th centuries with the work of scientists like William Gilbert, who coined the term "electricity" from the Greek word for amber, " elektron ." Gilbert's experiments with static electricity laid the groundwork for further research. Benjamin Franklin and the Discovery of Lightning's Electricity (1750s) : Benjamin Franklin famously conducted his kite experiment in 1752, demonstrating that lightning is a form of electricity. His work contributed significantly to understanding the nature of electricity and its behavior. Invention of the Leyden Jar (1745) : The Leyden Jar, invented independently by Ewald Georg von Kleist and Pieter van Musschenbroek , was one of the earliest devices used to store electric charge. It was a significant step in the development of capacitors.

2. Alessandro Volta and the Invention of the Battery (1800) : Italian scientist Alessandro Volta invented the voltaic pile, the first electric battery, which produced a steady electric current. This invention laid the foundation for the practical use of electricity in various applications. Michael Faraday and Electromagnetism (early 19th century) : Faraday's experiments with electromagnetism led to the discovery of electromagnetic induction and the development of Faraday's laws of electrolysis. His work laid the groundwork for the modern understanding of electricity and magnetism. Invention of the Electric Light Bulb (1879) : Thomas Edison, along with his team, developed the first practical incandescent light bulb, which revolutionized lighting and made electricity more accessible for everyday use. Advancements in Power Generation and Distribution (late 19th to early 20th century) : The invention of the dynamo and the development of alternating current (AC) systems by Nikola Tesla and others facilitated the widespread generation and distribution of electricity, powering industries, homes, and cities. Electrification of Society : Throughout the late 19th and early 20th centuries, electricity became increasingly integrated into daily life, powering appliances, transportation systems, and communication technologies.

3. Modern Developments : The 20th and 21st centuries have seen continuous advancements in electrical engineering, including the development of semiconductor technology, integrated circuits, renewable energy systems, and smart grid technologies, shaping the modern world and paving the way for a more electrified and interconnected future. The history of electricity is a testament to human curiosity, ingenuity, and perseverance, with each discovery and innovation building upon the achievements of the past.

4. History of Electronics Engineering he history of electronics engineering is a fascinating journey that spans centuries and has revolutionized the way we live, work, and communicate. Here's a brief overview: Early Discoveries (17th-19th centuries) : The foundations of electronics engineering trace back to the 17th century with discoveries in electricity and magnetism by scientists like William Gilbert, Otto von Guericke, and Charles-Augustin de Coulomb. In the 19th century, Michael Faraday's experiments with electromagnetism laid the groundwork for understanding the relationship between electricity and magnetism. Telegraphy and Telegraph Systems (19th century) : The 19th century saw the development of telegraph systems, starting with Samuel Morse's invention of the telegraph in 1837, which revolutionized long-distance communication. Pioneers like William Thomson (Lord Kelvin) and Charles Wheatstone made significant contributions to telegraph technology, including improvements in cables and signaling.

5. Invention of the Vacuum Tube (20th century) : The early 20th century marked a significant milestone with the invention of the vacuum tube, which enabled the amplification and control of electrical signals. Lee De Forest's introduction of the Audion tube in 1906 was a breakthrough, leading to applications in radio broadcasting, telephony, and early computing. 4.Transistors and Integrated Circuits (mid-20th century) : The invention of the transistor in 1947 by John Bardeen, Walter Brattain, and William Shockley at Bell Labs revolutionized electronics. Transistors were smaller, more reliable, and consumed less power than vacuum tubes. The development of integrated circuits (ICs) in the late 1950s by Jack Kilby and Robert Noyce further miniaturized electronic components, leading to the creation of microprocessors and modern digital electronics.

6. Digital Revolution and Beyond (late 20th century to present) : The late 20th century witnessed the digital revolution, marked by advancements in digital computers, telecommunications, and consumer electronics. Engineers played pivotal roles in developing technologies such as semiconductors, digital signal processing, fiber optics, and wireless communication. Today, electronics engineering continues to evolve rapidly, with innovations in areas like nanotechnology, renewable energy systems, Internet of Things (IoT), artificial intelligence (AI), and quantum computing shaping the future of technology.