Semi Conductors And Logic

Answer 1

Semi conductor are normally resistive in its nature,by a process called “dopping” a semi conductor can be created

P type = fewewr electron
N type= more electron

P-N junction creates a diode
P-N-P creates a transistor (emitter in one side and collector in other side )

By increasing the voltage on the base ,the resistance increases and the conductivity decreases.

Conductivity from collector to emitter is increased by decreasing base voltage

Question 2

Zener Diodes

Answer 2

Are formed using a simple P-N junction

Zener diode block can block to a certain voltage (threshold ) but an over voltage would utlimetly be allowed back through