Three resistors,with values of 3.00,7.00,and 15.0 Ω,respectively,are connected in parallel.What is the overall resistance of this combination?
A)25.0 Ω
B)1.84 Ω
C)0.543 Ω
D)8.33 Ω
E)6.80 Ω

Question

Quizplus · Accepted Answer

The overall resistance, $R_{total}$, of resistors in parallel is given by $\frac{1}{R_{total}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3}$. Plugging in the given values, $\frac{1}{R_{total}} = \frac{1}{3} + \frac{1}{7} + \frac{1}{15}$. Solving this equation gives $R_{total} \approx 1.84 \Omega$.

Three Resistors,with Values of 3