What is the combined resistance here?

Eitan Levy · Dec 11, 2017

Homework Statement

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What is the combined resistance in this circle between A and B.

Honestly I have no idea what to here, any explanation will be great.

cnh1995 · Dec 11, 2017

Have you studied series-parallel reductions?
Start from the extreme right. What can you say about the two Rs in the rightmost loop?

Eitan Levy · Dec 11, 2017

cnh1995 said:

Have you studied series-parallel reductions?
Start from the extreme right. What can you say about the two Rs in the rightmost loop?

This is the only thing I knew how to do here. They both combine to one resistor with a resistance of 2R.

cnh1995 · Dec 11, 2017

Eitan Levy said:

This is the only thing I knew how to do here. They both combine to one resistor with a resistance of 2R.

Right. Then what happens to the two 2Rs? How are they connected?

Eitan Levy · Dec 11, 2017

cnh1995 said:

Right. Then what happens to the two 2Rs? How are they connected?

Their connection is parallel.

cnh1995 · Dec 11, 2017

Eitan Levy said:

Their connection is parallel.

Yes. So now you can go on simplifying the network until you find the equivalent resistance.

Eitan Levy · Dec 11, 2017

cnh1995 said:

Yes. So now you can go on simplifying the network until you find the equivalent resistance.

Alright, thank you! I think I got it.