Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Current and Drift Velocity (multiple choice)

  1. Feb 5, 2008 #1
    [SOLVED] Current and Drift Velocity (multiple choice)

    1. In a dental X-ray machine, the movement of accelerated electrons is east. The current associated with these electrons is in what direction: (a) east, (b) west, or (c) zero?









    3. At first I thought it was B (west) because as the electrons(-ve charge) are moving east, it is equivalent to a +ve charge moving west, conventional current towards west. But then it seems as if the answer could be C (zero). Which answer is correct?
     
  2. jcsd
  3. Feb 5, 2008 #2
    Accelerated electrons always constitute a current provided that majority of the acceleration contributes to the same direction, which in your case is east.

    and yes.. the current is going west as u said..
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook