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RETIREDFAN1

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Everything posted by RETIREDFAN1

  1. ....and go to a Trump rally, you'll be welcomed with open arms because we believe in FREE SPEECH....if you're a Trump supporter and go to a Biden rally, you'll more than likely be beat up......
  2. 90 years old....lol....he's younger than you..... and probably in better shape....
  3. Read and study the prophet Habbakuk.....he had the same questions you have ....
  4. God has never used perfect men to do His will because there are no perfect men..he used the idolatrous Assyrians to destroy the 10 northern tribes of Israel.....He used the idolatrous Babylonians to punish Judah.....you need to ask yourself which candidate is closer to the teachings of the Bible...... God's plans sweep over thousands of years.....we live only 70 or 80......
  5. Lol....you ain't gonna educate anyone on this forum....see the motto....lol....but keep on posting your views......FREE SPEECH IS INVIOLATE ...
  6. And please don't stop posting because you get challenged.......lol....THAT is what freedom of speech is.....
  7. You're an admin.....you cant be deleted or banned.....lol...but your OPINION is not going to be very well received on this forum.....FREE SPEECH RULES!!!! Something your establishment masters do not want.......
  8. And go to the Museum of the Pacific War for a 3rd visit......
  9. ....just to eat at Cooper's BBQ......
  10. To stay TOTALLY anti establishment AND draw more dimnuts away from Biden, he shoulda picked Ralph Nader......lol
  11. Who among us is not a sinner??? By your logic, no one should sell Bibles.....
  12. WHAT IS ELECTROMAGNETIC INDUCTION? Electromagnetic induction, is a fundamental principle that describes the generation of an electromotive force (EMF) across an electrical conductor in a changing magnetic field. This principle is central to much of modern technology, particularly in the generation and transmission of electrical power. What does this mean? Electromagnetic induction is the process by which a voltage can be induced in a conductor by changing the magnetic field around the conductor. This phenomenon was discovered independently by Michael Faraday in 1831 and Joseph Henry around the same time, leading to the formulation of Faraday's Law of Induction. This law states that the induced electromotive force in any closed circuit is equal to the negative of the time rate of change of the magnetic flux enclosed by the circuit. How it Occurs: There are two primary scenarios in which electromagnetic induction occurs: 1. Relative motion between a conductor and a magnetic field If a conductor moves through a magnetic field, or if a magnetic field moves around a stationary conductor, the change in magnetic flux over time through the surface bounded by the conductor induces a voltage in the conductor. 2. Changing the intensity of a magnetic field A time-varying magnetic field through a stationary conductor loop induces a voltage in the loop. This change can be achieved by altering the magnitude or direction of the magnetic field. The direction of the induced EMF and current (if the circuit is closed) is given by Lenz's Law, which states that the direction of the induced current will be such that it opposes the change in magnetic flux that produced it. This is a manifestation of the conservation of energy. Where can we take advantage of this? Electromagnetic induction has a myriad of applications in both consumer electronics and industrial machinery Electric Generators: Mechanical energy is converted into electrical energy by rotating a coil within a magnetic field, inducing a current in the coil. Transformers: These devices use electromagnetic induction to increase or decrease voltage levels, enabling efficient long-distance power transmission. Induction Motors: Widely used in industry, these motors operate without direct electrical connections to the rotor, instead using electromagnetic induction from the magnetic field of the stator winding. Wireless Charging: Devices such as smartphones and electric toothbrushes can be charged without wires by inducing an electric current in the device through a changing magnetic field. Inductive Heating: Utilized in industrial processes and cooking appliances, it involves generating heat in a metal object by inducing electric currents within the material, which resistively heat due to their internal resistance. Other aspects Energy Efficiency The efficiency of devices that use electromagnetic induction, such as transformers and motors, is a critical area of research and development. Improvements can lead to significant energy savings and reduction in greenhouse gas emissions. Magnetic Materials The properties of materials used in the core of coils (e.g., soft iron) are crucial because they affect the efficiency of induction by minimizing energy loss. Safety Considerations In high-power applications, the strong magnetic fields used can pose risks to humans and sensitive electronics if not properly managed. Summary Electromagnetic induction is a cornerstone of modern electrical engineering and physics, enabling the generation, manipulation, and application of electrical energy across a broad spectrum of technologies. From the basic principles laid out by Faraday and Henry to contemporary advances in materials science and electronic engineering, the study and utilization of electromagnetic induction continue to drive innovation and improve the efficiency and functionality of electrical devices and systems. Best Wishes Sondre Åkerøy Sundrønning Physicist General Relativity COPYRIGHT ALL RIGHTS RESERVED.
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