| ⇦ | 
| ⇨ |
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 projectile is fired from the surface of the earth with a velocity of 5 m s⁻¹ and angle
- Two satellites of earth, S₁ and S₂ are moving in the same orbit. The mass of S₁
- The frequency of an alternating voltage is 50 cycles per second and its amplitude
- The equations of motion of a projectile are given by x=36 t metre and 2y=96t-9.8t²
- Planck’s constant has same dimensions as those of
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A projectile is fired from the surface of the earth with a velocity of 5 m s⁻¹ and angle
- Two satellites of earth, S₁ and S₂ are moving in the same orbit. The mass of S₁
- The frequency of an alternating voltage is 50 cycles per second and its amplitude
- The equations of motion of a projectile are given by x=36 t metre and 2y=96t-9.8t²
- Planck’s constant has same dimensions as those of
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply