question on charged particals

[Michael]

I have a question on the difference between charged particals and the
field generated by a wire. If we could detect it, would a charged
particle, say an electron cause a magnetic field? Another Question, say
for a piece of copper wire with a electron flow, is the magnetic field a
funcion of the the conductor? Would a piece of copper and a piece of
iron have a different magnetic field for a given current? I am curious
if say water, not pure of course, would generate a magnetic field when a
current flows through it.
Curious
Mick C

 

[Dr Gang]

I have a question on the difference between charged particals and the field

generated by a wire. If we could detect it, would a charged particle, say
an electron cause a magnetic field?

Any charged particle that's undergoing an acceleration will produce a
magnetic field. An electron is charged and is the main cause of the
classical electric current that we use in electronic (therefore the name
ELECTRONic) and electricity.

Another Question, say for a piece of copper wire with a electron flow, is
the magnetic field a funcion of the the conductor?

Yes, it is.

Would a piece of copper and a piece of iron have a different magnetic
field for a given current?

Yes, refer to the Maxwell equations. The mu and epsilon coefficients
(respectively magnetic susceptibility and dielectrical constant) vary with
the considered conductor.

I am curious if say water, not pure of course,

Pure water contains ions (H+ and OH-, those responsible for acidity and
alkalinity) but in very low concentration (10^-7 mol per liter).

would generate a magnetic field when a current flows through it.

I think it would but I have no idea the intensity of that field.

 

[[email protected]]

Any charged particle that's undergoing an acceleration will produce a
magnetic field.

Any charged particle that is moving represents an electric current and
creates a magnetic field. Acceleration isn't necessary.

An electron is charged and is the main cause of the
classical electric current that we use in electronic (therefore the name
ELECTRONic) and electricity.

Wrong order - the name elecron was invented long after the concept of
electricity had been established.

Yes, it is.

The right answer is "it can be"

Yes, refer to the Maxwell equations. The mu and epsilon coefficients
(respectively magnetic susceptibility and dielectrical constant) vary with
the considered conductor.

In fact, most conductors are like copper and aluminium and the same
current generates pretty much exactly the same magnetic field.

A few conducting materials - incluidng iron - are ferromagnetic which
complicates the situaton.

Pure water contains ions (H+ and OH-, those responsible for acidity and
alkalinity) but in very low concentration (10^-7 mol per liter).


I think it would but I have no idea the intensity of that field.

Water is not ferromagnetic, so the intensity of the field generated is
very close to the intensity of the magnetic field generated by the same
current flowing through any other non-ferromagnetic conductor.

http://dev.physicslab.org/Document.aspx?doctype=3&filename=Magnetism_CurrentCarryingWires.xml

 

[Dr Gang]

Wrong order - the name elecron was invented long after the concept of

electricity had been established.

What makes you think the written order was meant to be the chronological
order in my sentence ?

 

[[email protected]]

What makes you think the written order was meant to be the chronological
order in my sentence ?

" An electron is charged and is the main cause of the
classical electric current that we use in electronic (therefore the
name
ELECTRONic) and electricity. "

What makes you think that your sentence exhibited any kind of order?
Come to think of it, what makes you think that you know enough about
electronics and physics to advise other people on the subject?

 

[Dr Gang]

Maybe my diplomas ?
This whole thread makes me think you're full of yourself to the point you
need to give precisions to an helpful post (mine, I think), following a
reasonable question, precisions that are formulated in a very rude and
condescending way.
If you don't like the concept of newsgroup, I suggest you get yourself an
empty soapbox and preach to the passersby.

 

[Don Lancaster]

Maybe my diplomas ?
This whole thread makes me think you're full of yourself to the point you
need to give precisions to an helpful post (mine, I think), following a
reasonable question, precisions that are formulated in a very rude and
condescending way.

The sole purpose of a Usenet newsgroup is to gang bang the cripples.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: [email protected]

Please visit my GURU's LAIR web site at http://www.tinaja.com

 

[Jim Thompson]

The sole purpose of a Usenet newsgroup is to gang bang the cripples.

But Dr Gang Bang is French. Yecccch ;-)

...Jim Thompson

 

[Don Lancaster]

But Dr Gang Bang is French. Yecccch ;-)

...Jim Thompson

Which is what those French Veternarians call a "four paw".


--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: [email protected]

Please visit my GURU's LAIR web site at http://www.tinaja.com

 

[joseph2k]

Any charged particle that's undergoing an acceleration will produce a
magnetic field. An electron is charged and is the main cause of the
classical electric current that we use in electronic (therefore the name
ELECTRONic) and electricity.


Yes, it is.


Yes, refer to the Maxwell equations. The mu and epsilon coefficients
(respectively magnetic susceptibility and dielectrical constant) vary with
the considered conductor.


Pure water contains ions (H+ and OH-, those responsible for acidity and
alkalinity) but in very low concentration (10^-7 mol per liter).


I think it would but I have no idea the intensity of that field.

Yes it does, in direct correspondence to the mu and epsilon coefficients.
Moreover, magnetic fields in (partially) conductive fluids are used to
induce voltages to measure fluid velocity in as variety of circumstances.