TO PLOTE REVERSE SATURATION CURRENT VS TEMPERATURE IN REVERSE BIOSED PN JUCTION DIODE, INSTRUMENT COMPRISES OF DC REGULATED POWER SUPPLY 0-20 VOLT /150MA TWO MOVING COIL METERS 20V AND 100UA FOR VOLTAGE & CURRENT MEASUREMENT, ONE PN JUNCTION DIAODE (GE TYPE) KEPT IN OVEN WITH TEMPERATURE CONTROL KNOB.