This is a characteristics of semiconductor diode {pn junction}.In forward biasing here we connect p to positive terminal and n -ve terminal when external voltage is aplied in such a direction that cancels out potential barrier thus permitting current
flow
In reverse biasing the connection of pn junction is inverted but in this the potential barrier incresesand offers resistance to current flow but at a certain voltage current increases suddenly(the break down voltage)the zener diode works in this principle
There are 2 type of biasing in PN junction didoe Forward biasing Reverse biasing
on forward biasing width of the depletion layer decreases whereas on reverse biasing the width of depletion layer increases.
in forward biasing depletion region width decreases and in reverse biasing it increases .
Forward biasing can be satisfied when a positive polarity of a battery connect with P side and the negative connect with N side In the P-N junction, that is caused : The free electrons in the N side will pushed by negative charge, and holes move far of positive charge, after that we will have a barrier (small area of barrier between P and N) this biasing called Forward biasing, because of small resistance of barrier, the current will flow, we can use it as a switch. the Reverse biasing is the opesit of all these specifications.
Fixed Bias,Self Bias, Forward Bias, Reverse Bias
yes
collector base is reverse biased (connect n region to be +ve terminal &p region to - ve terminal .due to forward biasing at emittor base juntion electrons follow from emittor to base .
When the pn junction is forward biased, some of the space charge is neutralized reducing the width of the pn junction.
voltage divider biasing
in BJT forwardbiasing & reverse biasing are carried out but in FET voltage divider biasing &self biasing are carried out.
The relationship between chemical equilibrium and the rates of forward and reversed reaction is they will both be equal. Meaning both of them will be just about the same.
in which of the following transistor bias methods is the input singel rectified? A. source biasing b.voltage divider biasing c.power supply biasing d.avc biasing