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OpenStudy (anonymous):

High cutoff frequency can be found in....which of the following....?? a. common base b. common collector c. common emitter

OpenStudy (stormfire1):

common emitter

OpenStudy (anonymous):

@stormfire1 : why dear ? would u explain it plz ?

OpenStudy (stormfire1):

Sorry for the delay...I was working on another problem. I honestly don't remember the theory behind it. However, I'm fairly sure it's correct since I do recall using a formula and Thevinin's Theorem in problems to calculate it...many years ago.

OpenStudy (anonymous):

@stormfire1 : as i know cut off frequency is depend on the resistor \[f _{L3db}=1/CR _{eq}\]

OpenStudy (stormfire1):

Yea...I don't remember those formulas. The classes I took that covered amplifiers were back in 1990 and I've never had to use them since :)

OpenStudy (anonymous):

its ok but i need some logic behind it....to be sure about the answer and also it will help me to understand the problem......!!

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