Question

Find the value of the currents I1 and I2 flowing clockwise in the first and second mesh respectively.

(a) 0.96A, 1.73A

(b) 0.96A, -1.73A

(c) -0.96A, 1.73A

(d) -0.96A, -1.73A

This question was addressed to me in an interview.

Asked question is from Mesh Analysis topic in section Network Theorems of Basic Electrical Engineering

Answer 1

Correct answer is (b) 0.96A, -1.73A

To explain I would say: The two mesh equations are:

5I1-3I2=10

-3I1+7I2=-15

Solving the equations simultaneously, we get I1=0.96A and I2=-1.73A.