Resistors in Series

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Components connected in Series are wired together as shown in the diagram.

Resistors in Series

Calculations

R_total = R₁ + R₂

or for three resistors ...

R_total = R₁ + R₂ + R₃

or for four resistors ...

R_total = R₁ + R₂ + R₃ + R₄

Just add the values together.

Test Yourself ...

R1 = 37 Ω

R2 = 11 Ω

What is the resistance of the circuit above?