Sign In

Chapter 7

AC Steady State Power

Instantaneous Power
Instantaneous Power
For a circuit with a sinusoidal input, the power delivered to a passive element equals the product of the voltage and current across it. Expressing ...
Average Power
Average Power
For most practical applications, the time-varying instantaneous power is not a commonly used quantity. Instead, the average power is used as the ...
Effective Value of a Periodic Waveform
Effective Value of a Periodic Waveform
Consider an AC circuit with a periodic voltage source connected to a resistor. The average power delivered to the resistor equals the integral of the ...
Complex Power
Complex Power
Consider a load connected to an AC source. The voltage and currents across this load can be represented in the frequency domain. The complex power is ...
Conservation of AC Power
Conservation of AC Power
The principle of AC power conservation states that the complex, real, and reactive powers generated by the source are equivalent to the total complex, ...
Power Factor
Power Factor
The power factor is the ratio of the active power to the apparent power. It is determined by the phase difference between the voltage and current, which ...
Power Factor Correction
Power Factor Correction
The power transmission to a factory involves the transfer of both active and reactive power. The ratio of active to total power defines the power factor. ...
The Power Superposition Principle
The Power Superposition Principle
Consider a circuit with two sinusoidal voltage sources. According to the superposition principle, the total current resulting from both sources is the sum ...
The Maximum Power Transfer Theorem
The Maximum Power Transfer Theorem
Consider a linear AC circuit connected to a load, represented by its Thevenin equivalent. The current flowing through the load is determined using the ...
JoVE Logo

Privacy

Terms of Use

Policies

Research

Education

ABOUT JoVE

Copyright © 2025 MyJoVE Corporation. All rights reserved