PNP And NPN Transistor Multiple Choice Questions And Answers

16. In P-N-P transistor, base will be of

   A.P material

   B.N material

   C.Either of the above

   D.None of the above

17. A P-N-P transistor has

   A.Only acceptor ions

   B.Only donor ions

   C.Two P-regions and one N-region

   D.Three P-N junction

18. Which of the following is valid for both P-N-P as well as N-P-N transistor

   A.The emitter injects holes into the base region

   B.The electrons are the minority carriersin the base region

   C.The EB junction is forward biased for active operation

   D.When a biased in the active region, current flows into their emitter terminal

19. ... is the device which acts like an N-P-N and a P-N-P transistor connected base-to-base and emitter-to-collector

   A.SCR

   B.UJT

   C.Diac

   D.Triac

20. In the symbols of P-N-P transistors and N-P-N transistor the arrow on the emitter shows the direction of flow of

   A.Electrons, electrons

   B.Holes, holes

   C.Holes, electrons

   D.Electrons, holes

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