Please note I simplify things for the reason that all can understand and not just the technical, although you may read this to correct your understanding.
Nice bit of studying for those that, still feel the need to go back to technology college and study a city and guilds 2367 electrical engineering I for one don't have that need, been there done that, I would like to correct a couple of errors that your studies failed to define for you!
Electrical current indeed travels round electrical cables, any engineer in the world can teach you this simple fact. Your power lines are high voltage carrier line (low current) to carry high current along such lines the cable would need to be a lot larger (proportional to its surface area and not its core density) your method is not logical and would not be cost affective at all. The surface area denotes the amount of current a cable can carry not the core density of the wire, due to resisting qualities I.e high grade copper 1.5mm2=17.5A 2.5mm2=28A and so on, as the surface area increases so does its ability to carry larger current!
P.s your electricity meters are not electrical motors lmao, if that where so they would use power themselves while trying to do such a simple task. The principle of how the meter works is the same as a motor but it only uses a single very small fixed magnet, the point I was making was that current flows circular and unfortunately damon you seem to of failed to grasp that. Fixed magnetic fields is nothing like electrical current, 2 totally different concepts, one can only produce a fixed magnet by going through a process involving magnetic electrical current. To think of any planet as a fixed magnet would suggest a non active and solid core, this simply isn't the case.
A fixed magnet is the worst example of electrical current possible cus it simply doesn't work in a fixed way, also coiling cables has a lot more complexities to it than you think (higher resistance as one example) this also is a bad example for a sphere since your looking at electricity in a 2 dimensional way, I guess its difficult for you to understand that with the internet electrical literature, I should refer you too the british IEE 17th edition wiring regulations BS7671. Although any previous regs will help you in this matter and 4 years of study for your basic grade qualification. You can't just pull science off the net and expect to understand it or it be correct, like I said keep it simple, you won't get confused and its a lot easier for the layman to understand.
Kind regards
Wayne
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Date: Tue, 24 Apr 2012 02:39:10 -0500
Permanent magnets can be obtained or manufactured which have
magnetic polarity without being in the presence of moving current
after being formed. This can be demonstrated with iron filings or
with a nail containing iron material in the presence of these
magnets.
When electric voltage is applied to a conductor such as a copper
wire, (electron movement) or current will flow from electrical
negative to electrical positive. This flowing current will cause an
electro-magnetic field to form around the wire.
If this electro-magnetic field is in close proximity to a permanent
magnet or another electro-magnet, relative mechanical movement will
occur if one or both of the objects with magnetic effect is free to
move.
Bending the conducting wire into a loop which is placed within a
magnetic field with one pole on one side of the loop and the
opposing magnetic pole on the opposite side of the loop increases
the relative mechanical force.
If Earth's magnetic poles were to affect naturally occurring
permanent magnet strength or electro-magnets of electric motors,
they would have to be much stronger than what is exhibited by a low
friction low mass compass.
Electric power from your utility company is billed by calculating
Alternating Current multiplied by Alternating Voltage multiplied by
Power Factor at a given rate per Kilowatt Hour.
Electric meters are small induction motors with gear reduction to
turn a calibrated set of wheels on the readout dials. Speed of the
motor is proportional to the amount of power being used, and the
readout is usually in kilowatt-hours.
Alternating current is produced by mechanical force obtained from
falling water, fossil fuel driven engines, nuclear or coal heat to
drive steam turbines or other means to mechanically rotate A.C.
Generators with resulting output being relatively high current and
relatively low voltage.
This A.C. power is converted to relatively low current, high voltage
through step-up transformers to send power via transmission lines
over long distances with high efficiency. When the user of
electricity at a home or factory has need for power, there are
various stages of step-down of voltage with resulting higher current
through step-down transformers.
Though this method of transmission is highly efficient, there are
losses due to resistance to the flow of current through the
conductors of lines and transformers (resulting in heat) and due to
impedance of primarily the transformers (another form of restriction
to the flow of current resulting in separation of current and
voltage peaks with respect to time called inductive reactance). To
offset some of this inductive reactance, large capacitors are used
which have capacitive reactance to assist in bringing peak current
and peak voltage back in phase with each other. Power factor is
expressed as the cosine of the phase angle between voltage and
current peaks. Operation of high inductance loads such as large
electric motors or of many small electric motors imposes inductive
loading which requires power factor correction to better utilize
power available from the utility.
Current through the A.C. power line is not circular around the
conductor. However, high power conducting lines with thousands of
volts do carry more current at the surface of the conductor than in
the center.
Magnetic lines of force occur at 90 mechanical degrees to the flow
of current around and outside the surface of the conductor. (See
right-hand rule and left-hand rule for relationship of direction of
current flow and magnetic field in motor and in generator action.)
Hope this is helpful info to direct this discussion along scientific
lines rather than off on tangents which only obfuscate rather than
clarify.
D