Which of the following systems is the most likely to be affected significantly by harmonics?
a. Three-phase, four-wire systems with nonlinear loads connected to 120V circuits
b. Single-phase, three-wire systems with some loads connected to 120V circuits
c. Three-phase, three-wire systems with no 120V loads
d. Three-phase, four-wire systems with no 120V loads
a. Three-phase, four-wire systems with nonlinear loads connected to 120V circuits
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