What are the three conditions that will result in a response of an applied voltage across a diode's terminal?

Question

What are the three conditions that will result in a response of an applied voltage across a diode's terminal?

Answer 1

1. Diode needs to be "forward" biased to around 0.7 v in order to turn the device on and for it to conduct current.

2. Diode needs to be in series with a load device or resistor that will permit the diode to operate within the limits of its forward bias operating current.

3. The Diode must have a forward bias operating power rating that will with stand the forward bias voltage across the diode at normal forward circuit current.

From the wording of your question, I'm not sure if the above is what you're looking for or not, but hope it helps

Answer 2

(1) For a regular diode, an A.C. current will be changed to a fluctuting D.C. current

(2) For an Light Emitting Diode (LED), light will be emitted

(3) For a Zener diode, current will easily flow in one direction causing the voltage across it to be 0 (actually, 0.7V), but the voltage of the reverse flow will be limited to the zener (breakdown) rating (which makes these ideal for cheap voltage regulators).