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I am attending an online lecture course on semiconductor physics. While explaining the common emitter mode of transistors, the professor sketched this diagram on the board: (I added something more to explain better)
I understand that the emitter has to be at the same potential, and that is why its "common". but what is the utility of grounding the emitter and the negative terminals of the battery? Can't this circuit be constructed without the grounding? Why is the grounding necessary?
I understand that the emitter has to be at the same potential, and that is why its "common". but what is the utility of grounding the emitter and the negative terminals of the battery? Can't this circuit be constructed without the grounding? Why is the grounding necessary?