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Chapter 7

AC Steady State Power

Poder Instantâneo
Poder Instantâneo
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 ...
 Potência Média
 Potência Média
For most practical applications, the time-varying instantaneous power is not a commonly used quantity. Instead, the average power is used as the ...
 Valor Efetivo de uma Forma de Onda Periódica
 Valor Efetivo de uma Forma de Onda Periódica
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 ...
Poder Complexo
Poder Complexo
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 ...
Conservação da Energia AC
Conservação da Energia AC
The principle of AC power conservation states that the complex, real, and reactive powers generated by the source are equivalent to the total complex, ...
Fator de Potência
Fator de Potência
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 ...
Correção do Fator de Potência
Correção do Fator de Potência
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. ...
O Princípio da Superposição de Potência
O Princípio da Superposição de Potência
Consider a circuit with two sinusoidal voltage sources. According to the superposition principle, the total current resulting from both sources is the sum ...
O Teorema de Transferência de Potência Máxima
O Teorema de Transferência de Potência Máxima
Consider a linear AC circuit connected to a load, represented by its Thevenin equivalent. The current flowing through the load is determined using the ...
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