SUMMARY
An NPN transistor can indeed light up a bulb when configured correctly. In the discussed circuit, the collector and base are connected to the negative terminal, while the emitter is connected to the positive terminal. The light bulb will illuminate when the photodiode activates the base, allowing current to flow from the collector to the emitter. However, reversing the source terminals will prevent the transistor from functioning properly, as it disrupts the necessary biasing conditions.
PREREQUISITES
- Understanding of NPN transistor operation
- Basic knowledge of circuit diagrams
- Familiarity with photodiode functionality
- Concept of current flow in electronic components
NEXT STEPS
- Study NPN transistor biasing techniques
- Learn about photodiode characteristics and applications
- Explore circuit design principles for switching applications
- Investigate the effects of reversing terminals in transistor circuits
USEFUL FOR
Electronics students, hobbyists experimenting with transistor circuits, and anyone interested in understanding the operation of NPN transistors in practical applications.
