Equivalent Resistance of Circuit System

[adamkesher]

I'm having trouble with this problem. Any advice would be appreciated. I know I can't group all resistors together in one loop, but I'm not sure where to draw my loops.

Should I choose the 200 ohm and 300 ohm for one parallel and the 400 ohm and 80 ohm for the other parallel?

I have a general understanding of series/parallel circuits, but this one is throwing me.

Thanks again,

-Alex

 

[analogdesign]

You can make a single resistor with this one. The 200 and 300 ohm resistors are in parallel as are the 400 and 80 ohm resistors. The two equivalent resistors are then in series.

 

[adamkesher]

Thank you analogdesign! I'm glad I was on the right track. =)