Re: Simple electricity, and yet.....!


xray4abc wrote:
Consider an ideal metallic conductor, connected,
in a closed electrical circuit, to a non-ideal DC
power source.
E=0 inside the conductor; E and B are perpendicular
to the conductor outside the conductor and at its surface too.

What is, then, causing the electrical current through
the conductor? What is pushing the electrons along
the conductor?

If E is zero everywhere inside the conductor, including where
it attaches to the source, then grad V is also zero. That is, there
is no voltage difference across the conductor and no current.

On the other hand, if you claim there is indeed a different
voltage at the two ends of the conductor, then obviously
E is not 0 everywhere.

Your initial conditions violate E = - grad V.

- Randy

.

Relevant Pages

  • Re: Simple electricity, and yet.....!
    ... Lorentz force exerted INSIDE the conductor, ... I have always thought that the electric field created by ... the power source was "pushing" the electrons. ... from the source to the resistor. ...
    (sci.physics)
  • Re: Does NEC-2 model wires as solid or hollow?
    ... The electrons ... in the conductor are the carriers and move hardly at ... as vibrating in place, absorbing and emitting photons. ... provides a orientation of a vertical that is tipped sand supplies ...
    (rec.radio.amateur.antenna)
  • Re: Simple electricity, and yet.....!
    ... power source. ... to the conductor outside the conductor and at its surface too. ... the battery: the full voltage across the internal R, ... The battery is both a ready source of electrons and at the other ...
    (sci.physics)
  • Re: Simple electricity, and yet.....!
    ... Lorentz force exerted INSIDE the conductor, ... I have always thought that the electric field created by ... the power source was "pushing" the electrons. ... from the source to the resistor. ...
    (sci.physics)
  • Re: Simple electricity, and yet.....!
    ... power source. ... to the conductor outside the conductor and at its surface too. ... the battery: the full voltage across the internal R, ... The battery is both a ready source of electrons and at the other ...
    (sci.physics)