A)what is dopant
B) what is barrier potential
c) what is doping
D) what is zener effect
Answers
Answer:
A)Definition of dopant. : an impurity added usually in minute amounts to a pure substance to alter its properties (such as conductivity)
B)Definition: The potential barrier in the PN-junction diode is the barrier in which the charge requires additional force for crossing the region. In other words, the barrier in which the charge carrier stopped by the obstructive force is known as the potential barrier.
C)Doping is the process of adding impurities to intrinsic semiconductors to alter their properties.
D)The Zener effect is a type of electrical breakdown that occurs in a reverse-biased PN junction when the electric field enables tunnelling of electrons from the valence to the conduction band of a semiconductor, leading to a large number of free minority carriers which suddenly increase the reverse current.