Question

Find the current flowing through 4Ω resistor shown in network below.

(a) 1.33A

(b) 2.35A

(c) 1.66A

(d) 2.66A

The question was posed to me during an interview for a job.

This key question is from Source Transformations in section Techniques of Circuit Analysis of Electric Circuits

Answer 1

Right option is (c) 1.66A

Easiest explanation: By using source transformation the above network is reduced and then by current division rule I4Ω= 5*(2/2+4) =1.66A.