An n−p−n transistor is biased to work as an amplifier. Which of the following statements is false?
A
The electrons go from the base region to the collector region
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B
The electrons go from the collector region to the base region
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C
The electrons go from the emitter region to the base region
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D
The electrons go from base region to the emitter region
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Solution
The correct option is B
The electrons go from the collector region to the base region
When the NPN transistor is in the forward bias, electrons flow from the emitter to the base, as the electrons and holes always move in opposite directions.
Thus, the holes move from base to emitter. When the PNP transistor is in the forward bias, holes move from emitter to base and the electrons move from base to emitter.
For an NPN transistor to be used as an amplifier, forward bias has to be applied to the transistor.
Hence, the false statement is (B) The electrons go from the collector region to the base region.
