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