In this article we will know about the electrical energy source.
We will discuss about the electrical energy sources.

## Electrical Energy Sources

Energy sources

Independent voltage sources and independent current sources
are the active elements. We have to consider now, these are also known as ideal
voltage source and ideal current source respectively.

### Ideal Voltage source

An ideal voltage source is one whose voltage is independent
of other circuit quantities, the voltage being a function of time only.
Specifically it is not a function of the magnitude or direction of the current
passing through it. An ideal voltage source may be shown as in fig. shows the
case when source voltage is a function of time while fig. show when the voltage
is a constant (a direct voltage).

A voltage source is not necessarily a power source. The
current through a voltage source is determined by other elements as well as by
the voltage source, at the instants of time when the current direction is form
–Ve to +ve through the voltage source the energy flows from the voltage
sources. A practical voltage source differs from the idealized one defined
above in the voltage changes with the current through the source. Any practical
source can be approximated by some combination of an ideal voltage source and
other circuit elements.

### Ideal current source

An ideal current source is a current source whose current is
independent of other circuit quantities and is a function of time only
specifically it is not a function the voltage across its terminals. A current
source may be shown as in fig.

A current source is not necessarily a power since the
polarity of the voltage across it is determined by other element as well as by
the current source.

### Ideal Voltage source characteristic

Ideal voltage source delivers energy at specified voltage V
which is independent of current delivers by source.

###
Ideal current source characteristic

Ideal current source delivers energy at a specified current
I which is independent of voltage delivers across the source.

### Practical voltage, current sources and their transformation

In a similar manner, a practical current source falls short
of the ideal and its output current falls with increase of load resistance (or
impudence). Therefore. Such a source may
be approximated as an ideal current source with a shunt resistance (or
impedance, to be more general). This shunt impedance then accounts for the fall
of output current with increase of load resistance.

Practical voltage and current sources may be
diagrammatically represented as in fig. represents practical voltage source
while fig. represents a practical current source.

Hence these are electrical energy sources if you will find
any incorrect above please comment below in comment box.

If you want to know more about the electrical energy sources
you must watch this video.

## Post a Comment