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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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- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the Young’s modulus experiment, if length of wire and radius both are doubled,
- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
- A parallel plate air capacitor of capacitance C is connected to a cell of emf
- A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons
- A uranium nucleus ₉₂ U ²³⁸ emits an α-particle and a β-particle in succession.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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