| ⇦ | 
| ⇨ |
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 dimensions of magnetic field intensity B are
- Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 sec.
- A body starts from rest, what is the ratio of the distance travelled by the body
- When sound is produced in an aeroplane with a velocity of 200 m/s horizontally,
- A thin glass(refractive index 1.5) lens has optical power of -5D in air.
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The dimensions of magnetic field intensity B are
- Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 sec.
- A body starts from rest, what is the ratio of the distance travelled by the body
- When sound is produced in an aeroplane with a velocity of 200 m/s horizontally,
- A thin glass(refractive index 1.5) lens has optical power of -5D in air.
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