What is their equivalent resistance when connected in series?

Three identical resistors have an equivalent resistance of 20 Ω when connected in parallel. What is their equivalent resistance when connected in series?

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  • Jim
    Lv 7
    1 month ago
    Favorite Answer

    20 Ω = x/3 since all 3 are equal.

    so x = 60 Ω each.

    In series, add:

    60 Ω + 60 Ω + 60 Ω = 180 Ω

  • 1 month ago

    each one is 20•3 Ω = 60 Ω

    in series they add, 3•60 = 180 Ω

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