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The power factor of an AC circuit having resistance R and inductance L connected in series to an AC source of angular frequency ω is
Options
(a) zero
(b) ωL/R
(c) R/√R²+ω²L²
(d) R/ωL
Correct Answer:
R/√R²+ω²L²
Explanation:
power factor, cos ɸ = R / Z = R / √[R² +ω²L²]
Related Questions: - The slope of the graph showing the variation of potential difference V on X-axis
- A plane electromagnetic wave of frequency 20 MHz travels through a space along
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The slope of the graph showing the variation of potential difference V on X-axis
- A plane electromagnetic wave of frequency 20 MHz travels through a space along
- The unit of electric permittivity is
- The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz.
- A potentiometer circuit has been set up for finding the internal resistance of a given
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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