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