A Series LR Circuit Dissipates an Average Power of 60

question 61

Multiple Choice

A series LR circuit dissipates an average power of 60 W. The circuit is powered by a 120 V rms 60 Hz supply. If the current is 2.0 A rms, what is the phase constant?

• A) 14°
• B) 25°
• C) 60°
• D) 70°
• E) 76°

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