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!

Electric field and electric potential

  1. Mar 26, 2014 #1
    1. The problem statement, all variables and given/known data
    hi, all, can anyone explain why the ans is C for this question?

    for the second question? shoudnt the ans is D ?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 27, 2014 #2

    rude man

    User Avatar
    Homework Helper
    Gold Member

    For first question:
    E = -grad V = -∂V/∂x i
    where i is unit vector in direction of P→Q.

    So now do you think C is correct? Why or why not?

    For second question : I agree with you!
  4. Mar 28, 2014 #3
    For second question: I agree with you guys too!
  5. Mar 28, 2014 #4

    rude man

    User Avatar
    Homework Helper
    Gold Member

    E, being a vector, I should have written in bold, and is hereby so corrected.
  6. Mar 29, 2014 #5

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper

    @delsoo: how did you get on with this in the end?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted