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

Homopolar Motor Help

  1. Jul 27, 2010 #1
    Hi Guys, I need some advice and hopefully an explanation.

    Does increasing the voltage on a simple homopolar motor increase its speed?

    If voltage doesn't increase the speed, how can we increase the speed?

    Thanks a lot, I've been searching for information but have not had a lot of success.

    If you're not part of the solution, you're part of the precipitate.
  2. jcsd
  3. Jul 27, 2010 #2
    Im assuming you are talking about something like the faraday disk (too lazy to look up homopolar motor) but yes, raising the potential difference will linearly increase current (since its an ohmic metal you're using) which increases the torque (linearly)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook