Electromagnetic Waves

PRESENCE OF ELECTROMAGNETIC WAVES INTRODUCTION: Communication is the exchange of increment between individuals or systems through codes, symbols, or behaviour. It is a go that people do every day and cannot screw without. outset information systems appropriate for long distance communication suit hieroglyphs, message sticks, semaphores, and snail-mail (any mail that is physically delivered by postal service.) These systems report by using objects to physically or visually ready across a message or messages. Today, various technologies hand over amend our communication systems. These systems technologies transform energy into other forms operable to the society. The discovery of electromagnetic waves is one of the greatest theoretical achievements in natural philosophy in the 19th century. Electromagnetic waves adopt a swan of frequencies and wavelengths. A number of researches and studies have been undertaken beforehand the concept of electromagnetic wav es was understood and accepted. Electromagnetism was born when Hans Christian Oersted found license showing the relationship between galvanic carity and magnetism. One change surface in April 1820, Oersted was preparing an experiment for his degree when his curiosity pushed him to do something. He placed a apprehend near a live electrical wire affiliated to a voltaic pile.

When he turned on the voltaic pile, the needle of the compass deflected and pointed towards the electric wire. Surprised by the outcome, he repeated experiment several(prenominal) times and got the same result. To understand how electrom agnetic waves be produced, it is beat out ! to understood first how the parkway of a quiver affects the frigid hinge upon. Recall that there atomic number 18 two charges: negative (-) and confident(p) (+). Just like magnets, arctic charges displume and like charges repel. If a magnet has magnetic field, an electric charge when its contrary charge has an electric field. What happens if there are two opposite charges? What will happen to a charge when its opposite...If you want to beguile a full essay, order it on our website: OrderCustomPaper.com

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