hi in this lecture we are going to discuss about the working of a junction field effect transistor that is the jfet okay lecture discussion data is used as the control voltage control voltage number you say in the e-voltage voltage vgs gate to source voltage that is vgs okay now in channel js highly adopted p-type region dot pay the number and then under fabricate informs you okay either numbers in the end channel jfet okay it run the p region internally connected on internally potential now there is no potential difference which means vgs the voltage between gate and source that is vgs is equal to zero zero eigenvector consideration okay now drain terminal name source terminal name and element connected in the potentiometer vdd in the potential okay now vds is the voltage between drain and source drain channel load opacity in the majority areas the electrons are current in the direction drain to source which means electrons will be having the direction from source to drain okay current in the opposite direction learning electrons in the moment and hour so current is flowing from drain to source okay through the affidavit if it did only load a drain aluminum source like on a current flow channel because we are connecting positive at the drain okay otherwise now the flow of this electron is controlled distributed okay so we are connecting a positive 2 volt at the drain and this obviously the source terminal will be at a zero potential okay two volts equally distributed so at the middle point this two volt will become one effective figure consider yeah so this is vds when we increase the vds and vds reaches a value called vp okay vds in the value zero on x axis of videos vp is pinch off voltage pinch of voltage so vp of the timeline particular voltage depletion regeneration increases increasing when we increase the voltage vds and at a particular point when the voltage reaches a particular value which is called a vp pin of voltage at the timeline ping of condition some become pinch of condition in the vertical number depletion region saturation [Music] so this narrow channel and a high current density is the reason for pinch of condition so dss current value on jfe possibly highest current okay will be helpful for you see you in the next session