Instantaneous Power in AC Circuits

Network Theory: Instantaneous Power in AC Circuits
Topics discussed:
1) The definition of instantaneous power.
2) Calculation of instantaneous power in an ac circuit.

Music:
Axol x Alex Skrindo - You [NCS Release]

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[sunandak]

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[paolorodriguez]

@2:50, I think what he means is the instantaneous power.

[mrEngineer]

🎯 Key Takeaways for quick navigation:

00:12 ⚡ Instantaneous power refers to the electric power at any specific instant in time.
01:35 📊 The formula for instantaneous power (PT) in terms of voltage (VM), current (IM), and phase angles (θ) is PT = VM IM cos(2Ωt + θB - θ).
02:39 🔄 The product of cosines can be expressed as a combination of sum and difference of angles, providing a more convenient form for power calculations.
03:03 ⏲️ The average power term is time-independent, while the term with twice the angular frequency indicates that instantaneous power has a frequency of twice that of voltage and current.
04:01 🔵 Instantaneous power exhibits a frequency twice that of the voltage and current in AC circuits.

[ravidramodi]

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[gleeladevi]

Sir cosA+B & A-B is not required na