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Resisters in series

When resisters are connected, to find the total resistance you add the values of the resisters.
R1 + R2 = Rtotal

1 of 2

Resisters in parallel

To calculate the value of resisters in a parallel circuit, use this formula;
1/R1 + 1/R2 + 1/R3 = 1/Rtotal

2 of 2


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