Question

Find I0  in the following circuit, R1= 1.1 kilo ohms, R2=3.25 kilo ohms, V= 3.7 v.

(a) 1.5 mA

(b) 2 mA

(c) 0.5 mA

(d) 1.2 mA

This question was posed to me in an online interview.

This is a very interesting question from Analysis of a Circuit Containing Dependent Sources in portion Circuit Variables and Elements of Electric Circuits

Answer 1

Right choice is (d) 1.2 mA

Explanation: By using the fact that the current is same in  series connection resistors and voltage is same parallel, the above problem can be solved. I0 is divided into αIx and Ix.  So, calculation these two gives the required current value.