Please answer the following on the blog:
1.What is an example of a semiconductor device?
Diodes or transistors
2. Why is silicon used in the manufacture of semiconductors?
because a silicon atom has four valence electrons in its outermost shell.
3. Discuss the difference using an example of the difference between and N-type and P-type semiconductor.
N-Type semiconductor has an electron which has a negative electrical property, and becomes a carrier of electricity. P-type semiconductor has a hole, which has a positive electrical property and become a carrier of electricity.
4. In your own words describe what a dioode does and the role of N and P type semiconductors.
A diode has rectification, At the P-N auction free electrons of the N-type semiconductor are absorbed by the holes of the P-Typer semiconductor.
5. What is rectification?
Rectification is the property to allow current to flow only in one direction
6. What causes color in an LED? Give and example of what causes a particular color.
The wavelength of light emitted depend on the raw material of the semiconductor, so by changing that material, one can change the
light color.
7. What is the relationship between base current and collector current in a transistor?
When the base current flows, current will also flow from the collector to the emitter. A transistor enable the collector current to become much greater than the base current, as a result, the collector current will change significantly in response to a slight change in the base current.
8. What are the advantages of a transistor over a switch?
It doesn’t wear out, is less likely to fail, and can be fine tuned.
No comments:
Post a Comment