Three 6.0-Ω resistors are connected in parallel.What is their equivalent resistance?
A)0.083 Ω
B)3.0 Ω
C)0.50 Ω
D)2.0 Ω
E)6.0 Ω

Question

Quizplus · Accepted Answer

The equivalent resistance, $R_{eq}$, of resistors in parallel is given by $\frac{1}{R_{eq}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3}$. For three 6.0-Ω resistors in parallel, $\frac{1}{R_{eq}} = \frac{1}{6} + \frac{1}{6} + \frac{1}{6} = \frac{1}{2}$, so $R_{eq} = 2.0$ Ω.

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