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# Quick equivalent resistance question.

#### Braeden Hamson

Feb 18, 2016
237
So learning about inductors at the moment, and I came across this resistor arrangement and I'm not sure how to solve it. The inductor which has been excluded from the diagram connects between point A and ground. I need to determine the resistance "seen" by the inductor, but I'm not sure how.

Thank you!

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#### Braeden Hamson

Feb 18, 2016
237
*cough cough* R1 means nothing when the supply is 0. Req is R2+R3

#### Harald Kapp

##### Moderator
Moderator
Nov 17, 2011
12,893
You'll have to apply the Superposition theorem. Replace the voltage source by a short circuit and calculate the equivalent resistance as seen from the right side.

#### Braeden Hamson

Feb 18, 2016
237
You'll have to apply the Superposition theorem. Replace the voltage source by a short circuit and calculate the equivalent resistance as seen from the right side.
Haha you caught my mistake before I could make it, I was going to treat the supply like an open circuit. But I need to treat it as a short

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