At resonance, a series LCR circuit behaves like a pure resistor, and the power factor becomes unity (1), meaning voltage and current are in phase.
What is the power factor for a series LCR circuit at resonance?
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Question context
This question is part of ⚡ Electrical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.