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The average power dissipated in a pure inductor is
Options
(a) VI²/4
(b) 1/2 VI
(c) zero
(d) VI²
Correct Answer:
zero
Explanation:
In the inductor circuit, phase difference (ɸ) = 90° or π / 2
we know that, Pₐᵥ = V(rms) I(rms) cos ɸ = V(rms) I(rms) cos(π/2)
Therefore, Pₐᵥ = 0
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A cell of emf E and internal resistance r supplies current for the same time
- The angle of incidence for a ray of light at a refracting surface of a prism is 45⁰.
- A black body is at 727⁰C. It emits energy at a rate which is proportional to
- A plane wave of wavelength 6250Å is incident normally on a slit of width 2×10⁻² cm.
- Eight drops of a liquid of density ρ and each of radius a are falling through air
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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