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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: - A ballon rises from rest with a constant acceleration g/8. A stone is released
- The potential energy of a simple harmonic oscillator when the particle is half way
- Two equal and opposite charges of masses m₁ and m₂ are accelerated
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A ballon rises from rest with a constant acceleration g/8. A stone is released
- The potential energy of a simple harmonic oscillator when the particle is half way
- Two equal and opposite charges of masses m₁ and m₂ are accelerated
- A stone is tied to a string of length l and whirled in a vertical circle with the other end
- A particle with total energy E is moving in a potential energy region U(x)
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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