Electric Circuit Class Discussions: Nobyembre 2014

Week Two and Three: Impedance and Admittance

Sabado, Nobyembre 22, 2014 | by Unknown

The impedance Z of a circuit is the ratio of the phasor voltage V to the phasor current I, measured in ohms Ω.

The admittance Y is the reciprocal of impedance, measured in siemens (S).

Formulas Used:

Watch This Videos On How To Solve Impedance and Admittance.

Reflection:

Once you memorize these important formulas, it will be easier for you to convert them which is necessary for solving unknowns in ac analysis. You also need to familiar with them to avoid confusion or interchanging.

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Week One : Sinusoids and Phasors

| by Unknown

Sinusoid

-is a signal that has the form of the sine or cosine function.

-are easily expressed by using phasors.

Why sinusoid is important in circuit analysis?

-Nature itself is characteristically sinusoidal.

-A sinusoidal signal is easy to generate and transmit.

-Easy to handle mathematically

Phasor

-is a complex number that represents the amplitude and the phase of a sinusoid.

-provide a simple means of analyzing linear circuits excited by sinusoidal sources.

For More Information, Please Watch This Video!

Reflection:
I think it is very important to have a sufficient knowledge regarding this topic because sinusoids and phasors are fundamentally present in analyzing mathematical problems in ac analysis. Especially when were converting them in their reactance.

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