# Pn and zener diode

1. Jan 7, 2015

### ajaykrishna90

When pn and zener diode is connected according to the circuit diagram(manual not diode box,ie, by connecting wires) it shows great fluctuations and readings cant be able to take. What may be the reason for this and how can i rectify?

2. Jan 8, 2015

Welcome AJ - but you have to provide more info..

3. Jan 8, 2015

### ajaykrishna90

I mean, when measuring 0v -0mA then .1v-0mA then 0.2v-0mA then 0.3v-100mA then 0.4v- 500mA ,thats the final range (500mA) for milli ammmeter. So how can i take readings after 0.3v?

4. Jan 8, 2015