Unilateral Elements
Unilateral elements are those for which the V-I
characteristics change when the polarity of the applied voltage is reversed.
i.e V-I graph in the first and third quadrant is not
identical.
Examples :- Pn junction diode, BJT etc.
Unilateral Circuits
Circuits that contain
at least one unilateral element are called unilateral circuits.
Below is the example of a unilateral circuit.
Bilateral Elements
Bilateral elements are just opposite of unilateral
elements i.e for bilateral elements V-I characteristics remain the same on
reversing the voltage polarity.
V-I graph in the first and third quadrant is
identical.
Examples :- resistor, inductor, capacitor etc.
Bilateral Circuits
Circuits containing only bilateral elements are called
bilateral circuits.
Below is the example of a bilateral circuit.
