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Here's a question

  1. Oct 25, 2004 #1
    I'm trying to figure out what exactly current electricity is, and how you can induce a current.

    According to some of the other threads I've read, infrared waves are released as a form of heat energy. So Im wondering two things:

    1) Is it possible to isolate a stream of electrons (eg. Have a stable cloud of electrons, controlled by say electromagnetic fields or watever, in a vacuum) to study electricity/electron properties in a very direct way?

    2) What happens when you bombard a stream of electrons(or the above mentioned 'cloud') with infrared light (is that even possible?) ie. The reverse of what happens when current electricity heats up a resistor (eg light bulb)?

    Hope these questions aren't too messed up :)

  2. jcsd
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