confused17
New Member
So I did a lab in school where I had a 2.2k resistor and a forward biased diode in a series circuit where I increased the voltage across the diode 0-.75V(by .5) and measured the current through the diode. For the required results of the lab I am supposed to plot the diode curve current versus voltage, I have done that but than it asks me what type of curve it is. I'm not sure what that is supposed to mean, like a exponential growth or something? The current through the diode increased from 0 to .0004mA when the voltage reached 0.25V (which is the knee voltage right?) Then I am asked to calculate the forward resistance of the diode at 4mA and 15mA from the curve and to explain the difference. How do I find the resistance at 4mA when I only went to
.75V?
Any help please? I'm really confused!
.75V?
Any help please? I'm really confused!