MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The input impedance of the base increases when ______ |
| A. | Beta increases |
| B. | Supply voltage increases |
| C. | Beta decreases |
| D. | AC collector resistance increases. |
| Answer» B. Supply voltage increases | |
| 2. |
If the emitter resistor is open, the ac input voltage will __________ |
| A. | Decrease |
| B. | Increase |
| C. | Remains the same |
| D. | Equals zero |
| Answer» C. Remains the same | |
| 3. |
If any capacitor is open, the ac output voltage wills ____________ |
| A. | Decrease |
| B. | Increase |
| C. | Remains the same |
| D. | Equals zero |
| Answer» B. Increase | |
| 4. |
IF_THE_EMITTER_RESISTOR_IS_OPEN,_THE_AC_INPUT_VOLTAGE_WILL___________?$ |
| A. | Decrease |
| B. | Increase |
| C. | Remains the same |
| D. | Equals zero |
| Answer» C. Remains the same | |
| 5. |
The input impedance of the base increases when ______$ |
| A. | Beta increases |
| B. | Supply voltage increases |
| C. | Beta decreases |
| D. | AC collector resistance increases. |
| Answer» B. Supply voltage increases | |
| 6. |
If any capacitor is open, the ac output voltage wills ___________? |
| A. | Decrease |
| B. | Increase |
| C. | Remains the same |
| D. | Equals zero |
| Answer» B. Increase | |
| 7. |
If the emitter bypass capacitor is open , the ac output voltage will ____________ |
| A. | decrease |
| B. | increase |
| C. | remains the same |
| D. | equals zero |
| Answer» B. increase | |
| 8. |
What is the function of feedback resistor? |
| A. | To increase voltage gain |
| B. | Reduce distortion |
| C. | Decrease collector resistance |
| D. | Decrease input impedance |
| Answer» C. Decrease collector resistance | |
| 9. |
In a swamped amplifier, the effects of the emitter diode become _________ |
| A. | Important to the voltage gain |
| B. | Critical to input impedance |
| C. | Significant to analysis |
| D. | Unimportant |
| Answer» E. | |
| 10. |
A swamped amplifier uses________ |
| A. | Base bias |
| B. | Positive feedback |
| C. | Negative feedback |
| D. | A grounded emitter |
| Answer» D. A grounded emitter | |
| 11. |
We can increase _______ to reduce distortion of an amplified signal. |
| A. | Collector resistance |
| B. | Emitter feedback resistance |
| C. | Generator resistance |
| D. | Load resistance |
| Answer» C. Generator resistance | |
| 12. |
A swamped amplifier has ________ input impedance as compared to CE stage amplifier. |
| A. | smaller |
| B. | equal |
| C. | larger |
| D. | zero |
| Answer» D. zero | |
| 13. |
The emitter of a swamped amplifier __________ |
| A. | is grounded |
| B. | has no dc voltage |
| C. | has an ac voltage |
| D. | has no ac voltage |
| Answer» D. has no ac voltage | |