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If the emitter and base of npn transisto...

If the emitter and base of npn transistor have same doping concentration, explain how will the collector and base currents be affected?

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In such silution, base current will increase and collector current will decrease. Most of majority carriers moving from emitter towards base will get neutralised by electron-hole combination in base, resulting in increase of base current and few majority carriers will reach the collector. Due to it there will be decrease of collector current.
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