Question

Three resistors of 1 Ω, 2 Ω and 3 Ω are connected in parallel. The combined resistance of the three resistors should be ?​

Answer 1

$\frac{1}{req} = \frac{1}{r1} + \frac{1}{r2 }+ \: \frac{1}{r3} \\ \\ \frac{1}{req} = \frac{1}{1} + \frac{1}{2} + \frac{1}{3} \\ \\ req = \frac{6}{11} \: ohm$