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Draw the basic structure of a bi-polar transistor. - Leaving Cert Physics - Question 7 - 2007
Question 7
Draw the basic structure of a bi-polar transistor.
Worked Solution & Example Answer:Draw the basic structure of a bi-polar transistor. - Leaving Cert Physics - Question 7 - 2007
Step 1
Draw the three layers of the transistor
Answer
A bipolar transistor consists of three layers of semiconductor material. These layers form two types of junctions, typically labeled as:
- Emitter (E)
- Base (B)
- Collector (C)
The structure can be depicted as follows:
C
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|
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| B |
---
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E
This representation shows the layers stacked vertically.
Step 2
Label the connections correctly
Answer
Ensure that the connections to each part of the transistor are properly labeled. The labels should indicate:
- E for Emitter
- B for Base
- C for Collector
For instance, the final diagram would appear as:
C
|
|
---
| B |
---
|
|
E
In this diagram, connections from the respective layers are clearly marked to identify the Emitter, Base, and Collector.