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

Ohmmeter and protoboard

  1. Apr 2, 2004 #1
    how can an ohmmeter be used to determined if two points on a protoboard are connected?

  2. jcsd
  3. Apr 2, 2004 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    By measuring the resistance between the points?
  4. Apr 3, 2004 #3
    Just to extend on Integral's answer, an ohmmeter measures the resistance between the two points using an internal voltage source and a galvanometer, which measures current. If you measure the resistance between two points that are not connected, the current will be zero and the resistance will be "infinite". If the points are connected, however, there will be current and a finite resistance.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook