Question

Find the current, IL flowing in the circuit given below

(a) IL = 1.777mA

(b) IL = 1.048mA

(c) IL = 1.871mA

(d) None of the mentioned

I had been asked this question in a job interview.

I'd like to ask this question from Multiplier and Divider topic in section Operational Amplifier Applications of Linear Integrated Circuits

Answer 1

Accurate option is (d) None of the mentioned

Delve into insight with: Voltage, VL = Vo^2/ Vref =13^2/10 = 16.9v.

∴ IL = VL/R = 16.9/12kΩ = 1.408mA.