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