1 eV

[Tom Del Rosso]

Wikipedia says, "When used as a unit of energy, the numerical value of 1
eV in joules (symbol J) is equivalent to the numerical value of the
charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?

--

 

[David Nadlinger]

On 18.03.20 3:50 pm, Tom Del Rosso wrote:

Wikipedia says, "When used as a unit of energy, the numerical value of 1
eV in joules (symbol J) is equivalent to the numerical value of the
charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?

The numerical values are the same. 1 eV / (1 J) = e / (1 C). — David

 

[Rick C]

On Wednesday, March 18, 2020 at 11:50:16 AM UTC-4, Tom Del Rosso wrote:

Wikipedia says, "When used as a unit of energy, the numerical value of 1
eV in joules (symbol J) is equivalent to the numerical value of the
charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?

Forget about it Tom, it's Wikipedia.

Have you never found errors in Wikipedia? I checked a reference once and found the Wikipedia text that used the reference said EXACTLY THE OPPOSITE of what the reference said!!!

There is a reason why you can't use a Wikipedia article as a reference for another Wikipedia article.

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209

 

Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> wrote in
news:5e72641a$0$1601$e4fe514c@textnews.kpn.nl:

On 18.03.20 19:07, DecadentLinuxUserNumeroUno@decadence.org wrote:
Rick C <gnuarm.deletethisbit@gmail.com> wrote in
news:d5cb78bd-d61d-4f0c-ba27-571c557c06a2@googlegroups.com:

There is a reason why you can't use a Wikipedia article as a
reference for another Wikipedia article.


How big is the volume that one mole of wikipedia articles takes
up?

How many angels at the head of a pin?????

Depends on their charge.

Not even two if both positive or both negative.
Exactly two if both opposite.

Cannot be zero charge.

 

[Sjouke Burry]

On 18.03.20 19:07, DecadentLinuxUserNumeroUno@decadence.org wrote:

Rick C <gnuarm.deletethisbit@gmail.com> wrote in
news:d5cb78bd-d61d-4f0c-ba27-571c557c06a2@googlegroups.com:

There is a reason why you can't use a Wikipedia article as a
reference for another Wikipedia article.


How big is the volume that one mole of wikipedia articles takes up?

How many angels at the head of a pin?????

 

David Nadlinger <david@klickverbot.at> wrote in
news:r4tgfd$lkc$1@news.ox.ac.uk:

On 18.03.20 3:50 pm, Tom Del Rosso wrote:
Wikipedia says, "When used as a unit of energy, the numerical
value of 1 eV in joules (symbol J) is equivalent to the numerical
value of the charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?

The numerical values are the same. 1 eV / (1 J) = e / (1 C). —
David

Looks like you Leyden-ed it all out for him.

 

Rick C <gnuarm.deletethisbit@gmail.com> wrote in
news:d5cb78bd-d61d-4f0c-ba27-571c557c06a2@googlegroups.com:

There is a reason why you can't use a Wikipedia article as a
reference for another Wikipedia article.

How big is the volume that one mole of wikipedia articles takes up?

 

[Tauno Voipio]

On 18.3.20 17:50, Tom Del Rosso wrote:

Wikipedia says, "When used as a unit of energy, the numerical value of 1
eV in joules (symbol J) is equivalent to the numerical value of the
charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?

A coulomb is an unit of charge, charge * voltage = energy.
The V in an eV is a volt.

--

-TV

 

[Robert Baer]

DecadentLinuxUserNumeroUno@decadence.org wrote:

Rick C <gnuarm.deletethisbit@gmail.com> wrote in
news:d5cb78bd-d61d-4f0c-ba27-571c557c06a2@googlegroups.com:

There is a reason why you can't use a Wikipedia article as a
reference for another Wikipedia article.


How big is the volume that one mole of wikipedia articles takes up?

Depends on how deep the mole has dug.

 

[Tom Del Rosso]

Tauno Voipio wrote:

On 18.3.20 17:50, Tom Del Rosso wrote:
Wikipedia says, "When used as a unit of energy, the numerical value
of 1 eV in joules (symbol J) is equivalent to the numerical value of
the charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?


A coulomb is an unit of charge, charge * voltage = energy.
The V in an eV is a volt.

So eV is a product of units. I hadn't realized (or remembered) that,
but it's consistent with 1C*1V=1J

Thanks.

 

[Tom Del Rosso]

David Nadlinger wrote:

On 18.03.20 3:50 pm, Tom Del Rosso wrote:
Wikipedia says, "When used as a unit of energy, the numerical value
of 1 eV in joules (symbol J) is equivalent to the numerical value of
the charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?

The numerical values are the same. 1 eV / (1 J) = e / (1 C). - David

Thanks. Now I get what they meant to say, but what they said is not
equivalent grammatically.

 

[Tauno Voipio]

On 18.3.20 22:00, Tom Del Rosso wrote:

Tauno Voipio wrote:
On 18.3.20 17:50, Tom Del Rosso wrote:
Wikipedia says, "When used as a unit of energy, the numerical value
of 1 eV in joules (symbol J) is equivalent to the numerical value of
the charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?


A coulomb is an unit of charge, charge * voltage = energy.
The V in an eV is a volt.

So eV is a product of units. I hadn't realized (or remembered) that,
but it's consistent with 1C*1V=1J

Thanks.

A product unit is not unheard of, think about 1 Nm for torque
and 1 VA for reactive power.

It is 1.602e-19 J, related to other weird particle units,
like a barn (1e-28 m2).

--

-TV

 

[Jeroen Belleman]

On 2020-03-19 13:12, Tauno Voipio wrote:

On 18.3.20 22:00, Tom Del Rosso wrote:
Tauno Voipio wrote:
On 18.3.20 17:50, Tom Del Rosso wrote:
Wikipedia says, "When used as a unit of energy, the numerical value
of 1 eV in joules (symbol J) is equivalent to the numerical value of
the charge of an electron in coulombs (symbol C)."

But a coulomb is not a unit of energy so how is that equivalent?


A coulomb is an unit of charge, charge * voltage = energy.
The V in an eV is a volt.

So eV is a product of units. I hadn't realized (or remembered) that,
but it's consistent with 1C*1V=1J

Thanks.


A product unit is not unheard of, think about 1 Nm for torque
and 1 VA for reactive power.

It is 1.602e-19 J, related to other weird particle units,
like a barn (1e-28 m2).

A barn was defined on a whim. The eV wasn't.

Anyway, most units are combinations of several of the seven
base units. Even the volt is in fact such a combination,
sufficiently important to get its own name.

Jeroen Belleman