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