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Determine the equivalent resistance of a infinite series-parallel resistor network. (series-parallel-series-parallel ect.) See how go you are at doing algebra. You have to show your work to get full credit (10 points)

2006-07-22 11:24:20 · 6 answers · asked by DoctaB01 2 in Science & Mathematics Mathematics

6 answers

the resistance of the network will aproach zero
http://mathforum.org/library/drmath/view/51490.html

2006-07-22 11:46:56 · answer #1 · answered by greatire 2 · 0 0

let r be the resistance value ohms, for all the resistances parallel or in series. Take the first two in series and the following two in parallel. The equivalent resistance is r+r+1/(1/r+1/r)=2.5r.
repeat this n times and obtain 2.5 nr=R the equivalent resistance.
If n approaches infinity R does the same.

2006-07-23 03:54:08 · answer #2 · answered by Mesab123 6 · 0 0

It depends how many components you put in each series and parallel part. Since you did not specify that, I take the challenge and use variables m and n for these numbers.

Let R0 be the individual resistance, and start with series circuit:

R1 = m . R0

then make a parallel circuit:

R2 = R1 / n = R0 . m/n

continuing like this, we find
R(2k-1) = R0 . (m/n)^k / m
R(2k) = R0 . (m/n)^k

This goes to zero if mn. Assume therefore that m = n, then the equivalent resistance is equal to the individual resistance as long as the number of parallel and series steps are equal

2006-07-22 12:59:18 · answer #3 · answered by dutch_prof 4 · 0 0

Why show your work for something that's common sense?

For an infinite series of resistors in series, regardless of the other combination it's gonna be zero.

wtf man.

2006-07-22 13:39:38 · answer #4 · answered by Anonymous · 0 0

This is going to be a reverse treatment quasi-experiment! P decreases as t->infinite, yet is always positive for t+n.

If (%n== PointR) {
14.01 in 406
}
else {
Ignore;
}



Just kidding...

2006-07-22 11:28:57 · answer #5 · answered by Aki 4 · 0 0

please anser to my 'what does this dream means' question at mythology & folklore.

2006-07-22 11:54:39 · answer #6 · answered by ancutzabatalar 3 · 0 0

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