Electrician Red Seal · Question
A single-phase load is drawing 20 A at 240 V and has a power factor of 0.85. What is the true power consumed by the load?
True Power (Watts) = Apparent Power (VA) × Power Factor. First, calculate Apparent Power: 240 V × 20 A = 4800 VA. Then, calculate True Power: 4800 VA × 0.85 = 4
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Question: A single-phase load is drawing 20 A at 240 V and has a power factor of 0.85. What is the true power consumed by the load?
Answer options:
- 4800 W ✅ 4080 W
- 5647 W
- 3468 W
Correct answer: 4080 W
Explanation: True Power (Watts) = Apparent Power (VA) × Power Factor. First, calculate Apparent Power: 240 V × 20 A = 4800 VA. Then, calculate True Power: 4800 VA × 0.85 = 4080 W.
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