p-n Junction Diode

Aim - Measurement of the variation of curent with applied p.d.for a forward and reverse-biased p-n junction diode	Instructions
	The diode is connected in the circuit so that the current through it can be measured as the p.d. across it is increased.
	The p.d. is increased by clicking on the right side of the potentiometer. The p.d. is decreased by clicking on the left side of the potentiometer.

	For a range of values of potential difference across the diode, measure the corresponding value of current through it.
	Reverse the 1.5 V cell so that the diode is reverse-biased. Again increase the p.d. across the diode and note the current through it.
	Graph your results with current on the y axis and p.d. across the diode on the x axis. Reverse bias p.d. can be represented by negative values on the y axis.




	Copyright Physics Support Materials 2000