### Impedance and Complex Impedance

In an Alternating Current, known commonly as an “AC circuit”, impedance is the opposition to current flowing around the circuit. Impedance is a value given in Ohms that is

In an Alternating Current, known commonly as an “AC circuit”, impedance is the opposition to current flowing around the circuit. Impedance is a value given in Ohms that is

Power Factor Correction is a technique which uses capacitors to reduce the reactive power component of an AC circuit in order to improve its eficiency and

In a DC circuit, the power consumed is simply the product of the DC voltage times the DC current, given in watts. However, for AC

We saw in our tutorial about Electrical Power that AC circuits which contain resistance and capacitance or resistance and inductance, or both, also contain real power and

Electrical and electronic circuits consist of connecting together many different components to form a complete and closed circuit. The three main passive components used in

In an AC circuit, a resistance behaves in exactly the same way as it does in a DC circuit. That is, the current flowing through

In a DC circuit, the product of “volts x amps” gives the power consumed in watts by the circuit. However, while this formula is also

In our tutorial about the AC Waveform we looked briefly at the RMS Voltage value of a sinusoidal waveform and said that this RMS value gives the same heating

The process used to find the Average Voltage of an alternating waveform is very similar to that for finding its RMS value, the difference this time is

In many ways a parallel resonance circuit is exactly the same as the series resonance circuit we looked at in the previous tutorial. Both are 3-element networks

Thus far we have analysed the behaviour of a series RLC circuit whose source voltage is a fixed frequency steady state sinusoidal supply. We have

Thus far we have seen that the three basic passive components of: Resistance, Inductance, and Capacitance have very different phase relationships to each other when connected to a sinusoidal