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