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