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