Question

What is the voltage across the 5 ohm resistor if current source has current of 17/3 A?

(a) 2.32V

(b) 5.21V

(c) 6.67V

(d) 8.96V

I have been asked this question at a job interview.

The doubt is from Kirchhoff’s Voltage Law topic in division Simple DC Networks of Basic Electrical Engineering

Answer 1

Correct choice is (b) 5.21V

The explanation: Assuming i1 and i2 be the currents in loop 1 and 2 respectively. In loop 1, 4+2i1+3(i1-17/3)+4(i1-i2)+5=0

In loop 2,  i2(4+1+5)-4i1-5=0 =>-4i1+10i2=5.

Solving these equations simultaneously i2=1.041A and i1=1.352A

V=i2*5= 5.21V.