The emitter region in the PNP junction transistor is more heavily doped then the base region so that(1 Point)the flow across the base region will be mainly because of holesthe flow across the base region will be mainly because of electronsrecombination will be increased in the base regionbase current will be high
Question
The emitter region in the PNP junction transistor is more heavily doped then the base region so that(1 Point)the flow across the base region will be mainly because of holesthe flow across the base region will be mainly because of electronsrecombination will be increased in the base regionbase current will be high
Solution
The emitter region in a PNP junction transistor is more heavily doped than the base region primarily to ensure that the flow across the base region will be mainly because of holes.
Here's a step-by-step explanation:
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In a PNP transistor, the emitter is made of P-type material, which means it has a high concentration of holes (positive charge carriers).
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The base, on the other hand, is made of N-type material and is lightly doped. This means it has fewer free electrons (negative charge carriers).
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When a voltage is applied, the holes from the heavily doped emitter move towards the base.
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Because the base is lightly doped, it has fewer free electrons to recombine with these holes.
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As a result, most of the holes are able to cross the base region and reach the collector.
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This means that the flow across the base region is mainly because of holes, not electrons.
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This design also helps to minimize the base current and increase the transistor's amplification factor, as fewer holes recombine with electrons in the base.
Similar Questions
The emitter region in the PNP junction transistor is more heavily doped then the base region so that
A- The emitter injects holes into the base region Which of the following is VALID for both P-N-P as well as N-P-N transistor LO: PH.2.16 B- The electrons are the minority carriers in the base region C. The emitter base junction is forward biased for active operation - When a biased in the active region, current flows into their emitter terminal
An npn bipolar junction transistor (BJT) is operating in the active region. If the reverse bias across the base-collector junction is increased, thenThe effective base-width increases and common-emitter current gain decreasesThe effective base-width increases and common-emitter current gain increases The effective base-width decreases and common-emitter current gain decreasesThe effective base-width decreases and common-emitter current gain increases
For a common base configuration of npn transistor, collector current is greater than base current. Why?
Why the base region is made thin in a transistor?
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