# 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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- JimLv 71 month agoFavourite 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

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