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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 number of NAND gates required to form an AND gate is
- If an electron and a positron annihilate, the energy released is
- Which of the following is not a thermodynamical coordinate?
- If the electric field lines is flowing along axis of a cylinder, then the flux
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The number of NAND gates required to form an AND gate is
- If an electron and a positron annihilate, the energy released is
- Which of the following is not a thermodynamical coordinate?
- If the electric field lines is flowing along axis of a cylinder, then the flux
- A uniform force of (3i + j) newton acfs on a particle of mass 2kg
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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