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Lv 6
F asked in Science & MathematicsEngineering · 10 years ago

Series-parallel resistors?

Hi.

I have 3 resistors, two of them are connected in series and they are 100 and 50 ohms. These 2 are in parallel with the third resistor which is 100 ohms. I thought the total was 250 but I was wrong. Then I tried again and came up with 60 ohms which is also wrong. How do I do this?

1 Answer

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  • billrussell42
    Lv 7
    10 years ago
    Favorite Answer

    If I visualize this correctly, the two in series add up to 150 ohms.

    That in parallel with the 100 ohms comes to 100•150 / (100+150) = 60 ohms.

    If 60 is wrong, then you didn't describe the circuit properly. Post a drawing.

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