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If the load resistance of a C.E. stage increases by a factor of 2, what happens to the high frequency response?(a) The 3 db roll off occurs faster(b) The 3 db roll off occurs later(c) The input pole shifts towards origin(d) The input pole becomes infiniteI got this question in my homework.Enquiry is from Effect of Various Capacitors on Frequency Response topic in chapter Transistor Frequency Response of Analog Circuits

Answer»

Correct option is (a) The 3 db roll off occurs faster

Easy explanation: If the load resistance INCREASES by a factor of 2, the output POLE decreases since it’s inversely proportional to the load resistance. Hence the C.E. stage experiences a faster roll off due to the pole.



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