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