Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion
Discussion Forum : Electronic Devices and Circuits - Section 1 (Q.No. 18)
18.
A transistor has two p-n junctions. The batteries should be connected such that
Answer: Option
Explanation:
Emitter-base junction is forward biased and base collector junction is reverse biased.
Discussion:
4 comments Page 1 of 1.
Satyaajeet said:
1 decade ago
The use of transistor decides biasing. If we want to use it as an amplifier than the EB junction should be forward bias and CB junction should be reverse biased. And to use it as open switch or closed switch, biasing should be different. So question should be more specific that to use transistor as amplifier, biasing should be ?
SWETHA said:
8 years ago
In question, that is not mentioned transistor application as on switch off switch, amplifier, attenuator. Then why answer c?
Katekyo said:
8 years ago
The main purpose of a transistor is for amplification and in that operation the biasing should be E-B forward and C-B reverse.
Letter A is saturation mode. And Letter B is Cut-off mode (in cutoff, only E-B should matter and should be reverse).
Letter A is saturation mode. And Letter B is Cut-off mode (in cutoff, only E-B should matter and should be reverse).
BURRA DHANUNJAYA said:
5 years ago
This is the region we call as active ie: CB region is reverse and CE region is forward it is used to give amplification.
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