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