MCQOPTIONS
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MCQOPTIONS
This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Electric Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In R1=10kΩ, Rf=100kΩ, v1=1V. A load of 25kΩ is connected to the output terminal. Calculate i1 and vo. |
| A. | 0.5mA, 10V |
| B. | 0.1mA, 10V |
| C. | 0.1mA, -10V |
| D. | 0.5mA, -10V |
| Answer» D. 0.5mA, -10V | |
| 2. |
If the gain of an inverting amplifying circuit is 13 and ±22V power supplies are used. What range of input values allows the opamp to be in linear region? |
| A. | ±1.69 |
| B. | ±1.35V |
| C. | ±2.28 |
| D. | ±0.5 |
| Answer» B. ±1.35V | |
| 3. |
If an inverting amplifying circuit has a gain of 10 and ±15V power supplies are used. The values of input for which opamp would be in the linear region? |
| A. | ±1.25 |
| B. | ±1.5V |
| C. | ±2.25 |
| D. | ±0.5 |
| Answer» C. ±2.25 | |
| 4. |
If Rs= 5Ω, Rf= 25Ω and -2.5V ≤ vg ≤ 2.5V. What are the smallest power supply voltages that could be applied and still have opamp in linear region? |
| A. | ±9V |
| B. | ±2.5V |
| C. | ±6V |
| D. | ±15V |
| Answer» E. | |
| 5. |
If Rs= 3Ω, Rf= 6Ω then the relation between vo and vg in case of a Non-Inverting amplifying circuit. |
| A. | vo= 9vg |
| B. | vo= 6vg |
| C. | vo= 3vg |
| D. | vo= vg |
| Answer» D. vo= vg | |
| 6. |
The condition for a Non-inverting amplifying circuit to operate in linear region operation _____________ |
| A. | (Rs+Rf)/Rs < │VCC/vg│ |
| B. | (Rs+Rf)/Rs ≠ │VCC/vg│ |
| C. | (Rs+Rf)/Rs > │VCC/vg│ |
| D. | (Rs+Rf)/Rs = │VCC/vg│ |
| Answer» B. (Rs+Rf)/Rs ≠ │VCC/vg│ | |
| 7. |
In the expression vo= -Avn, A is called ______________ |
| A. | Closed loop gain |
| B. | Closed loop fault |
| C. | Open loop fault |
| D. | Open loop gain |
| Answer» E. | |
| 8. |
If VCC = 12V and vs=1mV, then Rf/Rs is _____________ |
| A. | >12000 |
| B. | <12000 |
| C. | 12000 |
| D. | 1 |
| Answer» C. 12000 | |
| 9. |
In an Inverting Amplifier circuit, the output voltage vo is expressed as a function of ____________ |
| A. | Input current |
| B. | Output current |
| C. | Source voltage |
| D. | Source current |
| Answer» D. Source current | |
| 10. |
IF_RS=_5‚ÄÖ√Ñ√∂‚ÀÖ√´¬¨‚ÀÇ,_RF=_25‚ÄÖ√Ñ√∂‚ÀÖ√´¬¨‚ÀÇ_AND_-2.5V_‚ÄÖ√Ñ√∂‚ÀÖ¬¢¬¨√Ü_VG_‚ÄÖ√Ñ√∂‚ÀÖ¬¢¬¨√Ü_2.5V._WHAT_ARE_THE_SMALLEST_POWER_SUPPLY_VOLTAGES_THAT_COULD_BE_APPLIED_AND_STILL_HAVE_OPAMP_IN_LINEAR_REGION??$# |
| A. | ±9V |
| B. | ±2.5V |
| C. | ±6V |
| D. | ±15V |
| Answer» E. | |
| 11. |
If the gain of an inverting amplifying circuit is 13 and ±22V power supplies are used. What range of input values allows the opamp to be in linear region?$# |
| A. | ±1.69 |
| B. | ±1.35V |
| C. | ±2.28 |
| D. | ±0.5 |
| Answer» B. ¬¨¬®¬¨¬±1.35V | |
| 12. |
If an inverting amplifying circuit has a gain of 10 and ±15V power supplies are used. The values of input for which opamp would be in the linear region?$# |
| A. | ±1.25 |
| B. | ±1.5V |
| C. | ±2.25 |
| D. | ±0.5 |
| Answer» C. ¬¨¬®¬¨¬±2.25 | |
| 13. |
The input applied to an Inverting amplifier is ______________ |
| A. | Equal to output |
| B. | Equal to Inverted output |
| C. | Not equal to output |
| D. | Output is equal to input |
| Answer» C. Not equal to output | |
| 14. |
If Rs= 3Ω, Rf= 6Ω then the relation between vo and vg in case of a Non-Inverting amplifying circuit?# |
| A. | v<sub>o</sub>= 9v<sub>g</sub> |
| B. | v<sub>o</sub>= 6v<sub>g</sub> |
| C. | v<sub>o</sub>= 3v<sub>g</sub> |
| D. | v<sub>o</sub>= v<sub>g</sub> |
| Answer» D. v<sub>o</sub>= v<sub>g</sub> | |
| 15. |
The condition for a Non-inverting amplifying circuit to operate in linear region operation _____________ |
| A. | (R<sub>s</sub>+R<sub>f</sub>)/R<sub>s</sub> < │V<sub>CC</sub>/v<sub>g</sub>│ |
| B. | (R<sub>s</sub>+R<sub>f</sub>)/R<sub>s</sub> ≠ │V<sub>CC</sub>/v<sub>g</sub>│ |
| C. | (R<sub>s</sub>+R<sub>f</sub>)/R<sub>s</sub> > │V<sub>CC</sub>/v<sub>g</sub>│ |
| D. | (R<sub>s</sub>+R<sub>f</sub>)/R<sub>s</sub> = │V<sub>CC</sub>/v<sub>g</sub>│ |
| Answer» B. (R<sub>s</sub>+R<sub>f</sub>)/R<sub>s</sub> ‚Äö√Ñ√∂‚àö¬¢‚Äö√тĆ ‚Äö√Ñ√∂‚àö√Ü‚àö√°V<sub>CC</sub>/v<sub>g</sub>‚Äö√Ñ√∂‚àö√Ü‚àö√° | |
| 16. |
The circuits of an inverting and Non-Inverting amplifying comprises of __________ and _______ number of resistors. |
| A. | 3, 2 |
| B. | 2, 3 |
| C. | 2, 2 |
| D. | 3, 3 |
| Answer» C. 2, 2 | |
| 17. |
In the expression vo= -Avn, A is called ______________ |
| A. | Closed loop gain |
| B. | Closed loop fault |
| C. | Open loop fault |
| D. | Open loop gain |
| Answer» E. | |
| 18. |
If VCC = 12V and vs=1mV, then Rf/Rs is _____________ |
| A. | >12000 |
| B. | <12000 |
| C. | 12000 |
| D. | 1 |
| Answer» C. 12000 | |
| 19. |
The other name for Gain is ____________ |
| A. | Scaling factor |
| B. | Output |
| C. | Amplifying factor |
| D. | Scaling level |
| Answer» B. Output | |
| 20. |
In an Inverting Amplifier circuit, the output voltage vo is expressed as a function of ____________ |
| A. | Input current |
| B. | Output current |
| C. | Source voltage |
| D. | Source current |
| Answer» D. Source current | |
| 21. |
The opamp in the Inverting circuit is in __________ |
| A. | Linear region |
| B. | Saturation |
| C. | Cut-off region |
| D. | Non-linear region |
| Answer» B. Saturation | |