What is the current through the circuit in the figure?
A) +0.83 A
B) -0.50 A
C) +0.50 A
D) +0.55 A
E) -0.92 A

Question

What is the current through the circuit in the figure?
A) +0.83 A 
B) -0.50 A 
C) +0.50 A 
D) +0.55 A 
E) -0.92 A

Quizplus · Accepted Answer

Using Kirchhoff's Current Law (KCL), we can write:
Current entering Node A = Current leaving Node A
i1 + i2 = i3
Substituting the given values:
0.25 A + (-0.75 A) = i3
i3 = -0.50 A
Since the current direction for i3 is given as clockwise, we take the negative value of i3.
Therefore, the current through the circuit is -0.50 A, which can be written as +0.50 A in the opposite direction. Hence, the correct choice is C.

What Is the Current Through the Circuit in the Figure