Red Seal Electrician Practice
Power factor and three-phaseQuestion 1415 of 1506

A balanced delta-connected load has a phase current of 25 A. What is the line current?

  1. 43.3 A
  2. 14.4 A
  3. 75.0 A
  4. 25.0 A
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Correct answer: 43.3 A

In a balanced delta, line current = phase current × √3 = 25 × 1.732 = 43.3 A.

Source: Computed, 7.5: Three-phase Y and Delta Configurations

Practice power factor and three-phase

Questions last reviewed: 18 October 2026