MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Considering the resistances of emitter, collector and base to be Re, Rc and Rb respectively, which of the following is the correct statements? |
| A. | Re > Rb > Rc |
| B. | Rc > Rb > Re |
| C. | Rb > Rc > Re |
| D. | Rb = Rc > Re |
| Answer» D. Rb = Rc > Re | |
| 2. |
For common emitter configuration, which of the following is the correct relation? |
| A. | IC < IE |
| B. | IC = βIB |
| C. | IC = αIE |
| D. | IC = IE |
| Answer» E. | |
| 3. |
The collector current in a BJT is temparature-independent. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following correctly determines the relation between α and β? |
| A. | β=α/(1-α) |
| B. | α=β/(1-α) |
| C. | β=α/(1-β) |
| D. | β=α*(1-β) |
| Answer» B. α=β/(1-α) | |
| 5. |
The value of IC is precisely zero when the value of IE is zero. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Which of the following currents in a BJT is also called leakage current? |
| A. | IC |
| B. | IE |
| C. | ICO |
| D. | ICBO |
| Answer» B. IE | |
| 7. |
In a BJT, if the collector-base junction is forward-biased and the base-emitter junction is forward-biased, which region is the BJT operating in? |
| A. | Saturation region |
| B. | Active region |
| C. | Cutoff region |
| D. | Reverse active region |
| Answer» B. Active region | |
| 8. |
What is the region on the output characteristics for VCE < VCEsat called? |
| A. | Active region |
| B. | Cutoff region |
| C. | Saturation region |
| D. | Active & Cutoff region |
| Answer» D. Active & Cutoff region | |
| 9. |
For a BJT, what is typically the shape of the power dissipation curve, if it's plotted on the output characteristics? |
| A. | Parabola |
| B. | Linear |
| C. | Hyperbola |
| D. | Circular |
| Answer» D. Circular | |
| 10. |
What is the region on the output characteristics below IC = ICEO line called? |
| A. | Active region |
| B. | Cutoff region |
| C. | Saturation region |
| D. | Active & Saturation region |
| Answer» C. Saturation region | |
| 11. |
Which of the following is the correct relationship between base and emitter current of a BJT? |
| A. | IB = β IE |
| B. | IB = IE |
| C. | IB = (β + 1) IE |
| D. | IE = (β + 1) IB |
| Answer» E. | |
| 12. |
Which of the following relations are correct? |
| A. | IE + IB = IC |
| B. | IC + IB = IE |
| C. | IE + IC = IB |
| D. | IB + IE = IB |
| Answer» C. IE + IC = IB | |
| 13. |
If the positive lead of a DMM, with the mode set to ohmmeter is connected to the base and the negative lead to the emitter and a high resistance reading is obtained, then what is the type of transistor that is being tested? |
| A. | npn |
| B. | pnp |
| C. | faulty |
| D. | not a transistor, it is a FET |
| Answer» B. pnp | |