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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: - Three objects A,B and C are kept in a straight line on a frictionless horizontal surface
- The dimensional formula for Boltzmann’s constant is
- A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Three objects A,B and C are kept in a straight line on a frictionless horizontal surface
- The dimensional formula for Boltzmann’s constant is
- A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
- A long solenoid has 500 turns. When a current of 2 ampere is passed through it
- Which of the following parameters does not characterize the thermodynamic state
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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