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I have a pair of old (relatively) Bose 501 speakers that are marked a=
Ohms, that I would like to use with a new receiver that only offers 8=
ohm connections. From what I've been able to establish, higher end
speakers tend to be of the 4 Ohm variety due to greater power associa=
with lower resistance. =20
What types of problems can I expect if I use 4 Ohm speakers with my 8
If my only problem will be reduced performance, then I'm not terribly
concerned. If I will cause permanent damage to my new receiver I thi=
I'll leave the speakers in storage.
In the past, my father had wired a 4 Ohm resistor (rated at 15 Watts)=
series with the speaker so that the amp would see 8 Ohms. Is it that
"An expert is a man who has made all the mistakes which can be made i=
very narrow field."
- Niels Bohr
=46rom: Forum for Physics Educators [mailto:PHYS-L@lists.nau.edu] On
Behalf Of Justin Parke
Sent: Tuesday, February 17, 2004 1:54 PM
Subject: Re: rolling
I just discovered that the latest edition of Halliday, Resnick, and
Walker has the correct answers (i.e. .5 L and L) in the back of the
In a message dated 2/4/2004 8:11:12 AM Eastern Standard Time,
(6th=3DI need some help with the following question from Halliday et al
ch. 12 question 5:
"A woman rolls a cylindrical drum, by means of a board on top,
distance L/2, which is half the board's length. The drum rolls
the board does not slide over the drum.
a) What length of board has rolled over the top of the drum?
b) How far has the woman walked?"
The answers in the book are L and 1.5 L. I am not sure I underst=
meant by "what length of board has rolled over the top of the dru=
It seemsfar has the =3D
to me that it should be L/2. If the questions means how
moved with respect to the ground then I agree it is L.
Answers in algebraic form (plus verbal explanations) are
strictly verbal arguments.
Oakland Mills High School