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Describe briefly with the help of a circuit diagram, how the flow of current carriers in a p-n-p transistor is regulated with emitter-base junction forward baised and base-collector junction reverse baised. |
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Answer» Solution :p-n-p transistor : It is a single crystal containing two p-n junctions such that there is a very thin central LAYER of n-type semi-conductor enclosed on either side by p-type semiconductor. The central layer has a thickness of about `10^(-4)`cm and is called the base. The p-type semiconductors on LEFT and right side of base are RESPECTIVELY called the emitter and COLLECTOR. Then p-n-p transistor and its symbol is from emitter to base. 
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