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