Consider the above 2 circuits: X and Y. Both of them have same Power Supply and Load. X is a simple circuit while Y is a circuit made with NPN BJT.
Assume the Power Supply is rated for 5V and 0.1A at maximum, the Load is rated for 0.1A@3V.
For schematic X, seems that the Load will draw only 0.1A from the Power Source and voltage dropped at the Load would be 3V. However, there is still 2V left. Where is that 2V gone? Or the Power Source would source only 3V in this case?
My question for Schematic Y is quite similar with X. Assume the BJT is in saturation mode, does the power supply source 5V and Load takes 3V while Vce takes 2V? Or the Power Source in such case would only source 3V?
Thanks in advance.