A transistor has three different conductive regions, such as two P-type regions sandwiching an N-type region (P-N-P),
We know that without applying voltage across the P-N junction, the diffusion of electrons and holes is hindered by the P-N junction potential barrier voltage and cannot continue
After a large number of holes reach the base region, due to the thinness of the base region,
The above refers to the situation where only a fixed voltage is applied without an input AC signal.
If Δ R represents the alternating resistance of the emitter junction and R represents the load resistance
In electronic circuits, connecting the positive terminal of a diode to the high potential terminal and the negative terminal to the low potential terminal will cause the diode to conduct.
