How does current flow in transistor?

Related questions

1. How transistor works as an amplifier?
2. What is the working principle of BJT?
3. What is the principle of transistor?
4. What do transistors do?
5. What is the main use of a transistor?
6. What is voltage gain in transistor?
7. Why is voltage gain negative?
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Tags

1. #designed
2. #still
3. #transistor
4. #electrons
5. #conventional
6. #collector
7. #controls
8. #current
9. #emitter
10. #flows
11. #opposite
12. #direction