HomeElectronics Multiple choice question MCQ online testTransistor questions and answers Transistor questions and answers Leave a Comment / Electronics Multiple choice question MCQ online test Share this 0% 0 votes, 0 avg Created on September 11, 2022Transistor Transistor Basic theoretical knowledge of transistor 1 / 32 Category: Transistor 1. The collector of a transistor is …………. doped heavily none of the above lightly moderately 2 / 32 Category: Transistor 2. The voltage gain in a transistor connected in ………………. arrangement is the highest common emitter common collector none of the above common base 3 / 32 Category: Transistor 3. In a pnp transistor, the current carriers are …………. free electrons donor ions acceptor ions holes 4 / 32 Category: Transistor 4. With the positive probe on an NPN base, an ohmmeter reading between the other transistor terminals should be …… high resistance infinite low resistance open 5 / 32 Category: Transistor 5. The output impedance of a transistor is …………….. high low zero very low 6 / 32 Category: Transistor 6. The arrow in the symbol of a transistor indicates the direction of …………. electron current in the collector electron current in the emitter hole current in the emitter donor ion current 7 / 32 Category: Transistor 7. The most commonly used transistor arrangement is …………… arrangement common base none of the above common emitter common collector 8 / 32 Category: Transistor 8. The power gain in a transistor connected in ……………. arrangement is the highest none of the above common collector common base common emitter 9 / 32 Category: Transistor 9. The input impedance of a transistor is …………. high almost zero low very high 10 / 32 Category: Transistor 10. ICEO = (………) ICBO 1 + α β none of the above 1 + β 11 / 32 Category: Transistor 11. Beta’s current ratio is …….. IC/IB IE/IB IB/IE IC/IE 12 / 32 Category: Transistor 12. When the transistor is used in Cut-off or Saturation state, It acts as ? A switch An zener diode An amplifire As AND gate 13 / 32 Category: Transistor 13. In a transistor ……………….. IC = IE + IB IE = IC – IB IE = IC + IB IB = IC + IE 14 / 32 Category: Transistor 14. The value of α of a transistor is ………. 1 none of the above less than 1 more than 1 15 / 32 Category: Transistor 15. The number of depletion layers in a transistor is ...... Two One Three Four 16 / 32 Category: Transistor 16. A transistor is a …………… operated device current voltage both 17 / 32 Category: Transistor 17. The emitter of a transistor is ………………… doped moderately lightly heavily none of the above 18 / 32 Category: Transistor 18. In a transistor, the base current is about ………….. of emitter current 25% 20% 5% 35 % 19 / 32 Category: Transistor 19. In a npn transistor, ……………. are the minority carriers free electrons holes donor ions acceptor ions 20 / 32 Category: Transistor 20. Total emitter current is ………… IB + IC IE – IC IC + IE IB – IC 21 / 32 Category: Transistor 21. In a transistor, signal is transferred from a …………… circuit high resistance to low resistance low resistance to high resistance low resistance to low resistance high resistance to high resistance 22 / 32 Category: Transistor 22. The value of β for a transistor is generally ……………….. less than 1 1 above 500 between 20 and 500 23 / 32 Category: Transistor 23. The relation between β and α is ………….. β = α / (1 – α ) β = 1 / (1 – α ) β = α / (1 + α ) β = (1 – α ) / α 24 / 32 Category: Transistor 24. In a tansistor, IC = 100 mA and IE = 100.2 mA. The value of β is ………… 100 200 50 about 1 25 / 32 Category: Transistor 25. A current ratio of IC/IE is usually less than one and is called ………… theta beta alpha omega 26 / 32 Category: Transistor 26. In a transistor if β = 100 and collector current is 10 mA, then IE is ………… 100.1 mA 110 mA none of the above 100 mA 27 / 32 Category: Transistor 27. The collector-base junction in a transistor has ……………. none of the above reverse bias at all times forward bias at all times low resistance 28 / 32 Category: Transistor 28. A transistor has....... Two PN junctions One PN junction Four PN junctions Three PN junctions 29 / 32 Category: Transistor 29. In a transistor, collector current is controlled by ……….. collector resistance collector voltage base current all of the above 30 / 32 Category: Transistor 30. BC 147 transistor indicates that it is made of ………….. germanium carbon silicon none of the above 31 / 32 Category: Uncategorized 31. A transistor is a …………… operated device both voltage none of the above current 32 / 32 Category: Transistor 32. The C-B configuration is used to provide which type of gain? resistance current power voltage Your score is LinkedIn Facebook Twitter VKontakte 0% Restart quiz Exit Anonymous feedback Thank you Send feedback Share this