Having a problem calculating total R in a parallel resistor network.
On pages 28-29 , question 2-5 in particular, I don't see how the book is coming to
those answers.
According to my calculations on question 2 the answer is not 20 ohms as stated in
the book, I must be doing something wrong, but I can't figure it out.
This is how I'm doing it for question #2
there are 3 sets of 10, 20 and 30 ohm resistors in the network, so..
G= 1/R
R = 1/G
1/10 + 1/20 + 1/30 GIVES >> .1 + .05 + .033 = 0.1833 1/.1833 = 5.455 for the first set of three.
So I do 3 * 5.455 = 16.366
Which is wrong, the book says the answer is 20 ohms.
I don't see how they came up with 20 ohms??
What am I doing wrong?? Should I not be multiplying by 3??
On pages 28-29 , question 2-5 in particular, I don't see how the book is coming to
those answers.
According to my calculations on question 2 the answer is not 20 ohms as stated in
the book, I must be doing something wrong, but I can't figure it out.
This is how I'm doing it for question #2
there are 3 sets of 10, 20 and 30 ohm resistors in the network, so..
G= 1/R
R = 1/G
1/10 + 1/20 + 1/30 GIVES >> .1 + .05 + .033 = 0.1833 1/.1833 = 5.455 for the first set of three.
So I do 3 * 5.455 = 16.366
Which is wrong, the book says the answer is 20 ohms.
I don't see how they came up with 20 ohms??
What am I doing wrong?? Should I not be multiplying by 3??
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