To verify forward characteristics of p-n junction diode.
A p-n junction diode is of the simplest semiconductor devices around, and which has the characteristics of passing current in one direction only. However, unlike a resistor, a diode does not behave linearly with respect to the applied voltage as the diode has an exponential current-voltage (I-V) relationship. If a suitable positive voltage (forward bias) is applied between the two end of the p-n junction, it can supply free electrons and holes with the extra energy the require to cross the junction as the width of the depletion layer around the p-n junction is decreased. This results in a characteristics curve of zero current flowing up to this voltage point, called the “knee” on the static curves and high current through diode.
|SL.NO||NAME OF APPARATUS USED||QUANTITY||MAKER’S NAME||RANGE|
|5||P-N junction diode|
|SL.NO||SUPPLY VOLTAGE (VS) (Volt)||Voltage across diode (VD) (volt)||Current through diode (ID) (mA)|
P-N junction is best suited for rectification of ac in dc supply. We are neglected some instrumentation error.