The power factor of an AC circuit having resistance ( R ) and inductance ( L ) connected…
Physics · JEE Advanced · NTA Exams — Electromagnetic Induction and Alternating Currents
The power factor of an AC circuit having resistance (R) and inductance (L) connected in series and an angular velocity ω is
- R/wL
- R/(R2 + w2L2)1/2
- wL/R
- R/(R2 – w2L2)1/2
Answer
(B) R /( R 2 + w 2 L 2 ) 1/2
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