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Electric field

  1. Jun 23, 2012 #1
    Good evening. Can anyone explain me the origin of the electric field in the F-N-L's law ?
    I'm referring to this one :

    [itex]\int_l \vec E^* d\vec l =-\int_s \frac{\partial \vec B}{\partial t} d\vec S[/itex]

    where [itex]\vec E^*[/itex] is defined as (i'm reporting the words of the book) :
    [itex]\vec E - \vec v \times \vec B[/itex].

    in particular what is [itex]\vec E[/itex] and what is its origin.

    //I apologize for any syntax/grammar error, I have to improve my English, I'm Italian.
  2. jcsd
  3. Jun 23, 2012 #2
    It's the intensity of the electric field.

    where F is the force, which the field acts on the electric charge

    Intensity of the electric field is used to characterize the electric field.
  4. Jun 23, 2012 #3
    But that is the electrostatic field and its circuitation is 0 !
    Last edited: Jun 23, 2012
  5. Jun 25, 2012 #4
    do you want to know where the E field comes from in faradays law or how E is related to B in that equation.
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