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