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The power factor of an AC circuit having resistance R and inductance L connected in series to an AC source of angular frequency ω is
Options
(a) zero
(b) ωL/R
(c) R/√R²+ω²L²
(d) R/ωL
Correct Answer:
R/√R²+ω²L²
Explanation:
power factor, cos ɸ = R / Z = R / √[R² +ω²L²]
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Dimensions [ML⁻¹T⁻¹] are related with
- Nuclear fission is not found in
- If a given volume of water in a 220V heater is boiled in 5 min, then same volume
- The ratio of specific charge of an α-particle to that of a proton is
- If the dimensions of a physical quantity are givenby Mᵃ Lᵇ Tᶜ, then the physical
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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