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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
- An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
- In a vessel, the gas is at a pressure P. If the mass of all the molecules
- If a body is rolling on the surface, its total energy will be
- If a vector 2i+3j+8k is perpendicular to the vector 4j-4i+αk, then value of α is
- A step down transformer is used on a 1000 V line to deliver 20 A at 120 V
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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