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In the series resonance the value of impedence is 3 Ω and the resistance is 4Ω, then the value of power factor of the circuit is
Options
(a) (4/3)
(b) (3/4)
(c) zero
(d) infinity
Correct Answer:
(4/3)
Explanation:
Power factor cos ɸ = Resistance / Impedance = 4 / 3.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A change of 0.04 V takes place between the base and the emitter when an input
- The maximum particle velocity in a wave motion is half the wave velocity.
- There are four light-weight-rod samples A,B,C,D seperately suspended by threads
- A body takes 5 minute for cooling from 50⁰C to 40⁰C. Its temperature
- An object is placed 30 cm away from a convex lens of focal length 10 cm and a sharp
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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