| Chronology | Current Month | Current Thread | Current Date |
| [Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
-----Original Message-----
From: Bob Sciamanda [mailto:trebor@VELOCITY.NET]
Sent: Thursday, February 07, 2002 8:09 PM
To: PHYS-L@lists.nau.edu
Subject: Re: Circuit Question
Tina,
I know others have a different view, but I take "Ohm's law"
as simply a
definition of resistance - it defines a useful property of
matter in many
common DC circuit circumstances. I think this is the simplest way to
present it. The definition tells us how to measure the
resistance of a
"resistor". Then a problem can specify the EMFs and the relevant
resistances in a circuit, so that the student can calculate
currents and
potential differences. Don't weaken. Learn by teaching and asking.
Bob Sciamanda (W3NLV)
Physics, Edinboro Univ of PA (em)
trebor@velocity.net
www.velocity.net/~trebor
----- Original Message -----
From: "Tina Fanetti" <fanettt@QUEST.WITCC.CC.IA.US>
To: <PHYS-L@lists.nau.edu>
Sent: Thursday, February 07, 2002 6:29 PM
Subject: Re: Circuit Question
Thank you to all who answered.concept by saying
However, is it really vaild to answer a question about a
look at this or that law.
situations. ANd
I mean really. I can solve for Ohm's law in a variety of
I can look at Ohm's law and know if I have a circuit this and
that is going
to happen.
barely solve
Now I have a masters degree. I am teaching people who can
algebraic problems.
about it they
If I told them to look at Ohm's law and think real hard
would revolt. The students would not get it and quit.
doesn't help us.
Yes I can say look at Ohm's law and show them via Ohm's law but that
fear they are
I am now afraid to ask any more questions on this list for
too "simple" for the people on this list.
It seems like this list is geared more towards topics atthe advanced
level and grad level and not to the intro topics that most must teach.
Tina