Equivalent resistance of resistors in series (18-11)

Question 1 of 2

Question

Resistances of the individual resistors

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Question

Equivalent resistance of $N$ resistors in series

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Review

Equation 18-11 tells us that by combining resistors in series, we create a circuit with a higher equivalent resistance than that of any of the individual resistors. A special case is when we put two identical resistors $R$ in series. The equivalent resistance is

$R_{\mathrm{equiv}} = R + R = 2R$

The equivalent resistance of two identical resistors in series is twice that of each indi vidual resistor.