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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 plumb line is suspended form a ceiling of a car moving with horizontal acceleration
- Two balls of mass m₁ and m₂ are separated from each other by powder charge
- An electric charge 10⁻³ μC is placed at the origin (0,0) of X-Y co-ordinate system.
- A body revolved around the sun 27 times faster than the earth. What is the ratio
- If a mass of 20g having charge 3.0 mC moving with velocity 20ms⁻¹ enters a region
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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