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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
- Length of a string tied to two rigid supports is 40 cm. Maximum length
- When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid
- Consider a uniform square plate of side ɑ and mass m. The moment of inertia
- Masses of 3 wires of same metal are in the ratio 1:2:3 and their lengths
- Energy of photon whose frequency is 10¹² MHz will be
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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