I am having trouble understanding the three operation modes of a transistor. I am giving below the three operation modes (CB, CE and CC) for pnp and npn transistors.
and for npn , here it is.
Unfortunately , I couldn't get the same format of picture for both types and its strenuous to draw each circuitry in circuitlab.
in CB mode, the EB junction is forward biased and CB junction reverse biased.
in CE mode , the BE junction is F.biased and CE junction is R.biased.
in CC mode , the BC junction is F.biased and EC junction is R.biased.
I am having no trouble understanding the common base configuration for both of them. But I am having trouble understanding the other two. Consider the CE mode. The collector and Emitter both are negative (for npn) , then how can we reverse bias them? does that mean that the collector is reverse biased with respect to base and vice versa ? I want a full detailed description of how the CE and CC mode works .
Question 2 : Why is the common pin (the base , the emitter , and the collector respectively) grounded? what is the significance of grounding them?
Question 3 : How does a CE mode amplify more than a CB mode ?