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