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## Homework Statement

## Homework Equations

resistors in series add

resistors in parallel add inversally. the denominator of the answer(which is the fraction) will be your answer

## The Attempt at a Solution

I added annotations to show my thought process

this last part was a good tricky question. but here's was my thought process.

since i need to find the points between A and B I need to do arithmetic on the points between A and B which is all the numbers in ohms

1 and 3 and 6 and 2 are in series. 4 ,12, 5 and 20 are in parallel.

with that said, 1+3+6+2 = 12 ohms

4*12/(4+12) = 48/16 = 3

5*20/(5+20) 100/25 = 4

12+3+4 = 19 ohms but its wrong.

any guidance will be appreciated