A common emitter amplifier circuit is shown in the figure below. For the transistor used in the circuit the current amplification factor, βdc=100. Other parameters are mentioned in the figure.We find that :
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answer is 4.
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Detailed Solution
βdc = 100, βdc=iCiB ⇒ iB= ic100 −−−−(1)VCC = +iCRL + VBC + VBE −−−−−−(2)−iBRB + VBC + iCRL=0 −−−−−−(3)Solving we get VBE=+20.7V, VBC=−3.75VNOTE: According to the question none of the options are matching. 4 th option is nearest.