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Bitmap Image  |  1994-05-10  |  43.9 KB  |  425x386  |  8-bit (67 colors)
   ocr: ELECTROMAGNETIC WAVES CHANGING / I - - ELECTRIC PIELD - - - - - - - - - #A - - . - - - - . - - - à - - - L - - - - - - - - - CHANGING - - - - - MAGNETICFIELD When a changing electric field produces a changing magnetic field, the story doesn'tend there. This changing magnetic field in turn produces a changing electric field, and SO on. The magnetic and electric fields move across space at right angles to one: another to form what is called an electromagnetic wave. SORI - - - Electromagnetic Spectrum