The equation of instantaneous power is?(a) P (t) = (VmIm/2)(cos⁡(2ωt+θ)+sin⁡θ)(b) P (t) = (VmIm/2)(sin⁡(2ωt+θ)+cos⁡θ)(c) P (t) = (VmIm/2)(cos⁡(2ωt+θ)+cos⁡θ)(d) P (t) = (VmIm/2)(sin⁡(2ωt+θ)+sin⁡θ)The question was posed to me in an online interview.This interesting question is from Instantaneous Power topic in chapter Power and Power Factor of Network Theory

The equation of instantaneous power is?(a) P (t) = (VmIm/2)(cos⁡(2ω

1.	The equation of instantaneous power is?(a) P (t) = (VmIm/2)(cos⁡(2ωt+θ)+sin⁡θ)(b) P (t) = (VmIm/2)(sin⁡(2ωt+θ)+cos⁡θ)(c) P (t) = (VmIm/2)(cos⁡(2ωt+θ)+cos⁡θ)(d) P (t) = (VmIm/2)(sin⁡(2ωt+θ)+sin⁡θ)The question was posed to me in an online interview.This interesting question is from Instantaneous Power topic in chapter Power and Power Factor of Network Theory
Answer» Right option is (c) P (t) = (VmIm/2)(cos⁡(2ωt+θ)+cos⁡θ) To ELABORATE: The equation of INSTANTANEOUS power is P (t) = (VmIm/2)(cos⁡(2ωt+θ)+cos⁡θ). It consists of two parts. One is a fixed part and the other is TIME VARYING which has frequency twice that of the voltage or current wave FORMS.

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