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

Why is voltage the same in a parallel circuit

  1. Apr 7, 2013 #1
    I am wondering why are voltages the same across a parallel circuit. How can we say that it depends on the start and end points only. On what basis? Thanks for clarifying!
     
  2. jcsd
  3. Apr 7, 2013 #2

    Dale

    Staff: Mentor

    By definition. All elements which are in parallel are connected to the same pair of nodes (definition of parallel) and all points on a given node are at the same voltage (definition of node).
     
  4. Apr 7, 2013 #3

    phyzguy

    User Avatar
    Science Advisor

    Consider two resistors in parallel. The ends of the resistors are connected together with a conducting wire. Good conductors cannot support a voltage difference, because if there is any voltage difference, current flows until the voltage is the same.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Why is voltage the same in a parallel circuit
  1. Parallel circuits (Replies: 5)

  2. Parallel Circuits! (Replies: 1)

  3. Parallel Circuits (Replies: 4)

Loading...