A three-phase generator is connected to three 70 Ω loads. Each coil generates 120 V ac. A common neutral line exists. How much current is flowing through the common neutral line?
A) 3.42 A
B) 5.13 A
C) 0 A
D) 2.26 A

Question

Quizplus · Accepted Answer

In a balanced three-phase system, the currents in the three phases are equal in magnitude but 120 degrees out of phase with each other. When these currents return through a common neutral, they cancel each other out completely, resulting in zero current flowing through the neutral line.

A Three-Phase Generator Is Connected to Three 70 Ω Loads