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Electron doesn't obey the right hand rule here???



 
 
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  #1  
Old July 28th 07 posted to sci.physics.relativity
guskz@hotmail.com
external usenet poster
 
Posts: 2,700
Default Electron doesn't obey the right hand rule here???

At the web link below: the electron gets fired from an electron gun
and it's deflection doesn't obey the right hand rule? In fact it
deflects towards the magnets and in relation with it's spin?

http://www.upscale.utoronto.ca/Gener...rnGerlach.html

(PS: look at spin of the electron section as opposed to spin of ball
section)




QUOTE: "One half of the electrons in the beam are deflected up, the
other half were deflected down."

QUOTE: "It seems that the "spin" of electrons comes in only two
states......For some electrons, the spin axis is what we are calling
"spin up", for others "spin down."

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  #2  
Old July 28th 07 posted to sci.physics.relativity
Eric Gisse
external usenet poster
 
Posts: 17,311
Default Electron doesn't obey the right hand rule here???

On Jul 27, 9:20 pm, " wrote:
At the web link below: the electron gets fired from an electron gun
and it's deflection doesn't obey the right hand rule? In fact it
deflects towards the magnets and in relation with it's spin?


[...]

What, "elements of physics" doesn't cover quantum mechanics and the
Stern-Gerlach experiment? Imagine that.

Electrons don't "obey the right hand rule". The right hand rule is
simply a convention used to decide where the resultant of a cross
product will point.

  #3  
Old July 28th 07 posted to sci.physics.relativity
T.M. Sommers
external usenet poster
 
Posts: 479
Default Electron doesn't obey the right hand rule here???

wrote:
At the web link below: the electron gets fired from an electron gun
and it's deflection doesn't obey the right hand rule? In fact it
deflects towards the magnets and in relation with it's spin?

http://www.upscale.utoronto.ca/Gener...rnGerlach.html

(PS: look at spin of the electron section as opposed to spin of ball
section)

QUOTE: "One half of the electrons in the beam are deflected up, the
other half were deflected down."

QUOTE: "It seems that the "spin" of electrons comes in only two
states......For some electrons, the spin axis is what we are calling
"spin up", for others "spin down."


The situation being discussed here earlier involved a uniform
magnetic field. The Stern-Gerlach experiment uses a non-uniform
field. In the case of a non-uniform field, there is an
additional force on the charge due to the gradient of the field,
and this additional force is what causes the vertical separation.

Actually, this force is always present, but when the field is
uniform, the gradient, and thus the force, are zero, and they are
ignored, especially in more elementary contexts.

--
Thomas M. Sommers -- -- AB2SB

  #4  
Old July 28th 07 posted to sci.physics.relativity
guskz@hotmail.com
external usenet poster
 
Posts: 2,700
Default Electron doesn't obey the right hand rule here???

On Jul 28, 4:45 am, "T.M. Sommers" wrote:
wrote:
At the web link below: the electron gets fired from an electron gun
and it's deflection doesn't obey the right hand rule? In fact it
deflects towards the magnets and in relation with it's spin?


http://www.upscale.utoronto.ca/Gener.../SternGerlach/...


(PS: look at spin of the electron section as opposed to spin of ball
section)


QUOTE: "One half of the electrons in the beam are deflected up, the
other half were deflected down."


QUOTE: "It seems that the "spin" of electrons comes in only two
states......For some electrons, the spin axis is what we are calling
"spin up", for others "spin down."


The situation being discussed here earlier involved a uniform
magnetic field. The Stern-Gerlach experiment uses a non-uniform
field. In the case of a non-uniform field, there is an
additional force on the charge due to the gradient of the field,
and this additional force is what causes the vertical separation.

Actually, this force is always present, but when the field is
uniform, the gradient, and thus the force, are zero, and they are
ignored, especially in more elementary contexts.


At the web link, the Nrth magnet only is pointy, would anything
different happen if the South magnet "also" had the same shape?


--
Thomas M. Sommers -- -- AB2SB- Hide quoted text -

- Show quoted text -



  #5  
Old July 29th 07 posted to sci.physics.relativity
T.M. Sommers
external usenet poster
 
Posts: 479
Default Electron doesn't obey the right hand rule here???

wrote:
On Jul 28, 4:45 am, "T.M. Sommers" wrote:
wrote:

At the web link below: the electron gets fired from an electron gun
and it's deflection doesn't obey the right hand rule? In fact it
deflects towards the magnets and in relation with it's spin?


http://www.upscale.utoronto.ca/Gener.../SternGerlach/...

(PS: look at spin of the electron section as opposed to spin of ball
section)


QUOTE: "One half of the electrons in the beam are deflected up, the
other half were deflected down."


QUOTE: "It seems that the "spin" of electrons comes in only two
states......For some electrons, the spin axis is what we are calling
"spin up", for others "spin down."


The situation being discussed here earlier involved a uniform
magnetic field. The Stern-Gerlach experiment uses a non-uniform
field. In the case of a non-uniform field, there is an
additional force on the charge due to the gradient of the field,
and this additional force is what causes the vertical separation.

Actually, this force is always present, but when the field is
uniform, the gradient, and thus the force, are zero, and they are
ignored, especially in more elementary contexts.


At the web link, the Nrth magnet only is pointy, would anything
different happen if the South magnet "also" had the same shape?


The B field would be different, so of course the results would be
different. I don't feel like calculating it, though.

--
Thomas M. Sommers -- -- AB2SB

  #6  
Old July 29th 07 posted to sci.physics.relativity
guskz@hotmail.com
external usenet poster
 
Posts: 2,700
Default Electron doesn't obey the right hand rule here???

On Jul 28, 9:45 pm, "T.M. Sommers" wrote:
wrote:
On Jul 28, 4:45 am, "T.M. Sommers" wrote:
wrote:


At the web link below: the electron gets fired from an electron gun
and it's deflection doesn't obey the right hand rule? In fact it
deflects towards the magnets and in relation with it's spin?


http://www.upscale.utoronto.ca/Gener.../SternGerlach/...


(PS: look at spin of the electron section as opposed to spin of ball
section)


QUOTE: "One half of the electrons in the beam are deflected up, the
other half were deflected down."


QUOTE: "It seems that the "spin" of electrons comes in only two
states......For some electrons, the spin axis is what we are calling
"spin up", for others "spin down."


The situation being discussed here earlier involved a uniform
magnetic field. The Stern-Gerlach experiment uses a non-uniform
field. In the case of a non-uniform field, there is an
additional force on the charge due to the gradient of the field,
and this additional force is what causes the vertical separation.


Actually, this force is always present, but when the field is
uniform, the gradient, and thus the force, are zero, and they are
ignored, especially in more elementary contexts.


At the web link, the Nrth magnet only is pointy, would anything
different happen if the South magnet "also" had the same shape?


The B field would be different, so of course the results would be
different. I don't feel like calculating it, though.


Ok, at the same web link, the deflections seem to be the same
magnitude toward the Nrth and towards the Sth magnet even though only
the Nrth is receded and not the South magnet.
--
Thomas M. Sommers -- -- AB2SB- Hide quoted text -

- Show quoted text -



  #7  
Old July 29th 07 posted to sci.physics.relativity
Eric Gisse
external usenet poster
 
Posts: 17,311
Default Electron doesn't obey the right hand rule here???

On Jul 29, 12:44 pm, " wrote:
On Jul 28, 9:45 pm, "T.M. Sommers" wrote:



wrote:
On Jul 28, 4:45 am, "T.M. Sommers" wrote:
wrote:


At the web link below: the electron gets fired from an electron gun
and it's deflection doesn't obey the right hand rule? In fact it
deflects towards the magnets and in relation with it's spin?


http://www.upscale.utoronto.ca/Gener.../SternGerlach/...


(PS: look at spin of the electron section as opposed to spin of ball
section)


QUOTE: "One half of the electrons in the beam are deflected up, the
other half were deflected down."


QUOTE: "It seems that the "spin" of electrons comes in only two
states......For some electrons, the spin axis is what we are calling
"spin up", for others "spin down."


The situation being discussed here earlier involved a uniform
magnetic field. The Stern-Gerlach experiment uses a non-uniform
field. In the case of a non-uniform field, there is an
additional force on the charge due to the gradient of the field,
and this additional force is what causes the vertical separation.


Actually, this force is always present, but when the field is
uniform, the gradient, and thus the force, are zero, and they are
ignored, especially in more elementary contexts.


At the web link, the Nrth magnet only is pointy, would anything
different happen if the South magnet "also" had the same shape?


The B field would be different, so of course the results would be
different. I don't feel like calculating it, though.


Ok, at the same web link, the deflections seem to be the same
magnitude toward the Nrth and towards the Sth magnet even though only
the Nrth is receded and not the South magnet.


Learn some physics. "north magnet" and "south magnet" mean absolutely
nothing.


--
Thomas M. Sommers -- -- AB2SB- Hide quoted text -


- Show quoted text -



  #8  
Old July 29th 07 posted to sci.physics.relativity
T.M. Sommers
external usenet poster
 
Posts: 479
Default Electron doesn't obey the right hand rule here???

wrote:
On Jul 28, 9:45 pm, "T.M. Sommers" wrote:
wrote:
On Jul 28, 4:45 am, "T.M. Sommers" wrote:
wrote:

At the web link below: the electron gets fired from an electron gun
and it's deflection doesn't obey the right hand rule? In fact it
deflects towards the magnets and in relation with it's spin?

http://www.upscale.utoronto.ca/Gener.../SternGerlach/...

(PS: look at spin of the electron section as opposed to spin of ball
section)

QUOTE: "One half of the electrons in the beam are deflected up, the
other half were deflected down."

QUOTE: "It seems that the "spin" of electrons comes in only two
states......For some electrons, the spin axis is what we are calling
"spin up", for others "spin down."

The situation being discussed here earlier involved a uniform
magnetic field. The Stern-Gerlach experiment uses a non-uniform
field. In the case of a non-uniform field, there is an
additional force on the charge due to the gradient of the field,
and this additional force is what causes the vertical separation.


I should have said the force is on the charge's magnetic moment.

Actually, this force is always present, but when the field is
uniform, the gradient, and thus the force, are zero, and they are
ignored, especially in more elementary contexts.

At the web link, the Nrth magnet only is pointy, would anything
different happen if the South magnet "also" had the same shape?


The B field would be different, so of course the results would be
different. I don't feel like calculating it, though.


Ok, at the same web link, the deflections seem to be the same
magnitude toward the Nrth and towards the Sth magnet even though only
the Nrth is receded and not the South magnet.


There is only one B field, not one for one magnet and a different
one for the other magnet.

--
Thomas M. Sommers -- -- AB2SB

 




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