7.35 An npn BJT with grounded emitter is operated with VBE = 0.700 V, at which the collector current is 1 mA. A 2- kΩ resistor connects the collector to a +5-V supply. What is the resulting collector voltage VC? Now, if a signal applied to the base raises vBE to 705 mV, find the resulting total collector current iC and total collector voltage vC using the exponential iC–vBE relationship. For this situation, what are vbe and vc? Calculate the voltage gain vc/vbe. Compare with the value obtained using the small-signal approximation, that is, –gmRC.
7.35 An npn BJT with grounded emitter is operated with VBE = 0.700 V, at which the collector current is 1 mA. A 2- kΩ resistor connects the collector to a +5-V supply. What is the resulting collector voltage VC? Now, if a signal applied to the base raises vBE to 705 mV, find the resulting total collector current iC and total collector voltage vC using the exponential iC–vBE relationship. For this situation, what are vbe and vc? Calculate the voltage gain vc/vbe. Compare with the value obtained using the small-signal approximation, that is, –gmRC.
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