There are
certain theorems, which when applied to the solutions of electric networks,
either simplify the network itself or render their analytical solution very
easy. These theorems can also be applied to an a.c. system, with the only
difference that impedance replace the ohmic resistances of d.c. system.
Different electric circuits (according to their properties) are defined below.
certain theorems, which when applied to the solutions of electric networks,
either simplify the network itself or render their analytical solution very
easy. These theorems can also be applied to an a.c. system, with the only
difference that impedance replace the ohmic resistances of d.c. system.
Different electric circuits (according to their properties) are defined below.
1.)
Circuit: A circuit is a closed conducting path through which
an electric current either flow or is intended to flow.
Circuit: A circuit is a closed conducting path through which
an electric current either flow or is intended to flow.
2.)
Parameters: The various elements of an electric circuit are
called its parameters like resistance, inductance and capacitance. These
parameters may be lumped or distributed.
Parameters: The various elements of an electric circuit are
called its parameters like resistance, inductance and capacitance. These
parameters may be lumped or distributed.
3.)
Linear Circuit: A linear circuit is one whose parameters are
constant, that is, they do not change with voltage or current.
Linear Circuit: A linear circuit is one whose parameters are
constant, that is, they do not change with voltage or current.
4.)
Non-linear Circuit: It is that circuit whose parameters change
with voltage or current.
Non-linear Circuit: It is that circuit whose parameters change
with voltage or current.
5.)
Bilateral Circuit: A bilateral circuit is one whose properties
or characteristics are the same in either direction. The usual transmission
line is bilateral, because it can be made to perform its functions equally in
either direction.
Bilateral Circuit: A bilateral circuit is one whose properties
or characteristics are the same in either direction. The usual transmission
line is bilateral, because it can be made to perform its functions equally in
either direction.
6.)
Unilateral Circuit: It is that circuit whose properties or
characteristics change with the direction of its operation. A diode rectifier
is a unilateral circuit, because it cannot perform rectification in both
directions.
Unilateral Circuit: It is that circuit whose properties or
characteristics change with the direction of its operation. A diode rectifier
is a unilateral circuit, because it cannot perform rectification in both
directions.
7.)
Electric Network: A combination of various electric elements,
connected in any manner whatsoever, is called an electric network.
Electric Network: A combination of various electric elements,
connected in any manner whatsoever, is called an electric network.
8.)
Passive Network: A passive network is one which contains no
source of e.m.f. in it.
Passive Network: A passive network is one which contains no
source of e.m.f. in it.
9.)
Active Network: An active network is one which contains one or
more than one sources of e.m.f.
Active Network: An active network is one which contains one or
more than one sources of e.m.f.
10.) Node:
A node is a junction in a circuit where two or more circuit elements are
connected together.
A node is a junction in a circuit where two or more circuit elements are
connected together.
11.) Branch:
A branch is that part of a network which lies between two junctions.
A branch is that part of a network which lies between two junctions.
12.) Loop:
A loop is a close path in a circuit in which no element or node is encountered
more than once.
A loop is a close path in a circuit in which no element or node is encountered
more than once.
13.) Mesh:
A mesh is a loop that contains no other loop within it.
A mesh is a loop that contains no other loop within it.
