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