1. What is an example of a semiconductor device?
An LED
2. Why is silicon used in the manufacture of semiconductors?
Low material cost and wide temperature range.
3. Discuss the difference using an example of the difference between and N-type and P-type semiconductor.
p type is a doped semi conductor containing excess holes while n type is a doped semiconductor containing excess free electrons. P means it is Positive for holes. N means Negative for electrons,
4. In your own words describe what a diode does and the role of N and P type semiconductors.
A diode is a type of electronic component that allows electricity to flow through in only one direction. When the diode is forward bias and connected to the P side, it has a higher electrical potential than N.
5. What is rectification?
The conversion of alternating current (AC) to direct current (DC)
6. What causes color in an LED? Give and example of what causes a particular color.
An LED emits light when it is activated at the P-N junction. The LED releases energy in the form of photons. The color of the light corresponds with the energy of the photon and is determined by the energy band gap of the semiconductor.
6. What causes color in an LED? Give and example of what causes a particular color.
An LED emits light when it is activated at the P-N junction. The LED releases energy in the form of photons. The color of the light corresponds with the energy of the photon and is determined by the energy band gap of the semiconductor.
7. What is the relationship between base current and collector current in a transistor?
In a base current, the current flows from the base to the emitter. In a collector current, as the base current flows, the current from the collector flows to the emitter as well.
8. What are the advantages of a transistor over a switch?
With a transistor there is no contact, it can be manipulated easier, there is more control and a faster response time.
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