How Diodes works
A diode is the two-terminal semiconductor device which allows the current to flow only in one direction and blocks the current that flows in the opposite direction. Symbol of the diode: A diode is made by connecting a part of N-type material to P-type Material,N-type material has excess of negative charged particles(electrons) whereas P-type material has excess of positive charged particles(holes). As there are more holes in P-type and more electrons in N-type whenever both are connected,holes will move from P-type to N-type and electrons will move from N-type to P-type and the holes and electrons combine and form depletion layer.In the depletion region , semiconductor will return back to the insulating state. To remove the depletion region,you have to apply enough potential which will make the electrons will move from N-type to P-type and holes will move P-type to N-type.To do this,connect the N-type to of the diode to the negative ...