Transcription of CHAPTER ONE - Prashanth Ellina
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CHAPTER ONE - Prashanth Ellina
WHAT IS PHYSICS ?Humans have always been curious about the world aroundthem. The night sky with its bright celestial objects hasfascinated humans since time immemorial. The regularrepetitions of the day and night, the annual cycle of seasons,the eclipses, the tides, the volcanoes, the rainbow have alwaysbeen a source of wonder. The world has an astonishing varietyof materials and a bewildering diversity of life and inquiring and imaginative human mind has respondedto the wonder and awe of nature in different ways. One kindof response from the earliest times has been to observe thephysical environment carefully, look for any meaningfulpatterns and relations in natural phenomena, and build anduse new tools to interact with nature. This human endeavourled, in course of time, to modern science and word Science originates from the Latin verb Scientiameaning to know . The Sanskrit word Vijnan and the Arabicword Ilm convey similar meaning, namely knowledge.
PHYSICAL WORLD 3 Ampere and Faraday, and encapsulated by Maxwell in his famous set of equations. The motion of a current-carrying conductor in a
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