Comparing fixed and collector to base bias which of the following statement is true?(a) Fixed bias is more stable(b) Collector to base bias is more stable(c) Both are the same in terms of stability(d) Depends on the designI have been asked this question during an interview for a job.Question is from Bias Stability in division Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits

Comparing fixed and collector to base bias which of the following stat

1.	Comparing fixed and collector to base bias which of the following statement is true?(a) Fixed bias is more stable(b) Collector to base bias is more stable(c) Both are the same in terms of stability(d) Depends on the designI have been asked this question during an interview for a job.Question is from Bias Stability in division Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits
Answer» Right CHOICE is (b) Collector to base bias is more STABLE The BEST I can explain: For fixed bias circuit, S = 1+BETA, more the beta, lesser the stability For collector to base bias S = (1+beta)/(1+beta(RC/RC+RB)) Hence collector to base bias is more stable.

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