Question

Find the value of Vx due to the 10V source.

(a) 1V

(b) 2V

(c) 3V

(d) 4V

I had been asked this question during an interview.

I would like to ask this question from Superposition Theorem topic in chapter Network Theorems of Basic Electrical Engineering

Answer 1

Right answer is (b) 2V

The best I can explain: Due to the effect of the 10V source, we short the 16V source and open the 3A and 15A source. From the resulting series circuit, we can use voltage divider to find the value of Vx.

Vx=10*20/(80+20)=2V.