2007-03-05 13:37:06 · 7 answers · asked by technosunshine 2 in Science & Mathematics ➔ Other - Science
I am talking about OHMS
2007-03-05 13:44:36 · update #1
Ok any form of friction is resistance. Electrically or otherwise. Any matter rubbing against another is resistance. Riding a bike against the wind is resistance. But resistance is a big word, meaning a lot of different things. Electrically, you are getting into a big world with that question.
But to answer your question honestly, friction is resistance.
2007-03-05 13:50:00 · answer #1 · answered by smittybo20 6 · 0⤊ 0⤋
I would say that is an excellent analogy - but I am not quite sure what we are supposed to describe - other than saying "it is an analogy".
You have given a fab explanation of what resistance is in laymans terms, so puzzled by *quite* what you are asking us now.
Please use the "add comments" button if you can make the question a little more specific and then we can also have another go :)
Mark
*update*
Hmm, I know resistance is measure in Ohms - and indeed until not so long ago, the inverse of resitance was called Mho - the unit of conductance.
Ohms law r=v/i which also equals i=v/r and v=ir is a way of expressing the limiting effects of a current in a circuit.
A high resistance will greatly limit the current throughout the entire circuit, a voltmeter placed directly across the resistance will also show how many volts are being dropped over the object in question.
2007-03-05 13:41:15 · answer #2 · answered by Mark T 6 · 0⤊ 0⤋
Mechanical friction generates heat, so does electricity traveling though a wire. The heat generated by electricity is largely the result of the resistance (or opposition to current flow) that that electricity encounters.
2007-03-05 13:41:48 · answer #3 · answered by V-Starion 5 · 0⤊ 0⤋
Electricity is a fluid. When it flows through a conductor molecules exert some force that opposes the flow, much like the walls of a pipe exert friction on a moving fluid.
2007-03-05 17:31:56 · answer #4 · answered by rsduhamel 1 · 0⤊ 0⤋
Hi. Resistance impedes the flow of electrons something like mountains impede the flow of the wind.
2007-03-05 13:39:22 · answer #5 · answered by Cirric 7 · 1⤊ 0⤋
resistance is like trying to run fast in water
2007-03-05 13:40:21 · answer #6 · answered by ibs 4 · 0⤊ 0⤋
Trying to be sneaky about cheating on homework? Not working. I see right through your wordiness! Well..um...I really don't know what that means. Sorry.
2007-03-05 13:40:08 · answer #7 · answered by Jenn 1 · 1⤊ 0⤋