1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: Potential Difference

  1. Jun 2, 2004 #1
    Please assist me with this

    The work done to move a 1.0 C charge from point P to Q is 3.0 * 10^-4J. If the charge starts from rest and has 1.0 * 10^-4J of kinetic energy when it reaches point Q, what must the potential difference be between P and Q?

    For this would I use

    Work done = kinetic + potential

    therefore Potential difference = Work done - kinetic

    This seems too simple to be right
     
  2. jcsd
  3. Jun 3, 2004 #2
    if i remember potential difference has something to do with Volts
     
  4. Jun 3, 2004 #3

    Doc Al

    User Avatar

    Staff: Mentor

    potential versus potential energy

    Don't confuse potential energy (PE) with potential difference (ΔV). The potential energy of a charge (Q) with respect to point at a lower potential (by ΔV) is PE = QΔV.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook