Canal Rays (also called Anode Rays or Positive Rays) were discovered by the German physicist Eugen Goldstein in 1886. They are streams of positively charged particles produced in a discharge tube.
Discoverer: Eugen Goldstein (1886).
Charge: Positive.
Nature: Streams of positive ions.
Key Difference from Cathode Rays: Cathode rays = electrons (negative); Canal rays = positive ions.
In a discharge tube with a perforated (holed) cathode and very low pressure, when high voltage is applied, the gas molecules lose electrons and form positive ions. These positive ions rush toward the cathode, and some pass through the holes (canals) in it — these streams are called Canal Rays.
Canal rays are streams of positively charged particles (positive ions) that pass through holes in the cathode in a discharge tube.
Canal rays were discovered by Eugen Goldstein in 1886.
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