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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 common emitter amplifier gives an output of 3 V for an input of 0.01 V.
- When two displacements represented by y₁=a sin(?t) are superimposed the motion is
- 64 drops of mercury, each charged to a potential of 10 V, are combined
- A disc of moment of inertia (9.8/π²) kg m² is rotating at 600 rpm. If the frequency
- A p-n-p transistor is used in common emitter mode in an amplifier circuit.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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