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