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If the total capacitance between the base and the emitter increases by a factor of 2, the transit frequency __________(a) reduces by 2(b) increases by 2(c) reduces by 4(d) increases by 4The question was posed to me during a job interview.Origin of the question is Effect of Various Capacitors on Frequency Response topic in chapter Transistor Frequency Response of Analog Circuits

Answer»

Correct CHOICE is (a) reduces by 2

Best EXPLANATION: The transit FREQUENCY is almost inversely proportional to the total capacitance between the base and the emitter of the B.J.T. Hence, the transit frequency will APPROXIMATELY REDUCE by 2 and the correct option becomes reduces by 2.



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