Apparatus
Overall Circuit
Circuitboard
Cable Wires
Connect the Light emitting diode circuit as per the circuit diagram.
Slowly increase supply voltage using variable Power supply using coarse and fine knobs.
Note down current through the Light emitting diode at increasing values of Light emitting diode voltage of 0.5V, 1.0V, 1.5V, 2.5 V.
Do not exceed current limit of 30mA else the Light emitting diode may get damaged.
Plot a graph of Light emitting diode voltage V/s Light emitting diode current .