Chapter 9.6 - Diodes

Question 1

What is a diode

Answer 1

Semiconductor component that allows current only in one particular direction

Question 2

What is a light-emitting diode (LED)

Answer 2

Diode that emits light when it conducts electricity

Question 3

What is the I-V characteristic for a diode (or LED)

Answer 3

• Potential difference across diode is not directly proportional to current in diode

• Diode doesnt obey Ohm’s law
-non-ohmic conductor

• Resistance is not constant
• Behaviour is dependent on polarity