VI Characteristics for Diodes: Investigation and Analysis

In this video, Matt demonstrates how to adapt a circuit to study the relationship between current and potential difference for a diode. He replaces a resistor with a diode and sets up the circuit with a power pack, ammeter, and voltmeter. Matt conducts an experiment by adjusting the potential difference and observes that current flows only when the potential difference is positive and above 0.3 volts. He plots the results on a graph, showing two distinct linear trends. The analysis reveals that the diode allows current to flow in one direction only, with varying resistance. The video concludes with a summary of the diode's characteristics.

Describe the relationship between potential difference and current as observed in the experiment.

How does the resistance change with different potential differences according to the results?

What conclusions can be drawn about the resistance of the diode in both directions?