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