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