11. Photo diode
Experimental set up
Measurement of PD current variation with LED power
* during the measurement you must keep the voltage to -1.00V ( -ve sign will not be shown in the display)
1. set the voltage to -1V and vary the power
2. when power changes, eventualy voltage will change so set the voltage back to -1V and take micro- ammeter reading.
Measurement of PD voltage variation with current
1.vary the voltage from 0.1 to 2.0 V and take corresponding micro-ammeter reading for particular power