James clerk maxwell electromagnetic theory atoms
James clerk maxwell electromagnetic theory atoms and molecules
James clerk maxwell electromagnetic theory atoms pdf!
Electromagnetic Waves come in many varieties, including radio waves, from the ‘long-wave' band through VHF, UHF and beyond; microwaves; infrared, visible and ultraviolet light; X-rays, gamma rays etc.
About 1860, James Clerk Maxwell brought together all the known laws of electricity and magnetism:
What difference did it make? Maxwell's new law and Faraday's law couple together as a wave equation, implying that any disturbance in the electric and magnetic fields will travel out together in space at the speed of light as an ‘electro-magnetic' wave.
What happened next? In 1887 Heinrich Hertz used a spark-gap transmitter and receiver to demonstrate that these waves actually existed.
James clerk maxwell electromagnetic theory atoms
The spark generator causes a current spike across the gap in the central antenna. The transient pulse of electric field travels outwards at the speed of light. It alternates in direction (red for up, blue for down) making a wave, and carries with it a magnetic field and electromagneti