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Is it true or false and why 1-There are no effect for transition capacitance under forward bias 2- For CE configuration if outport voltage increase the input current will be decrease?
Wiki User
∙ 9y ago
Q1: A PN juncrion has to be reverse-biased for a transiton capacitance to exist. In forward bias there is no depletion layer and the junction conducts, so it does not behave as a capacitance.
Q2: In a common-emitter circuit the ouput voltage appears across a resistor connected between the collector and the positive rail (for a normal NPN transistor). Therefore when the current through the transistor increases, there is more voltage drop across this resistor and the collector voltage has to fall.
Wiki User
∙ 9y ago
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