MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 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. |
For a high frequency response of a simple C.E. stage with a transconductance of gm, what is Cout? |
| A. | C<sub>cs</sub> C<sub> </sub>*(2 + 1/g<sub>m</sub>*R<sub>2</sub>) |
| B. | C<sub>cs</sub> + C<sub> </sub>*(1 + 2/g<sub>m</sub>*R<sub>2</sub>) |
| C. | C<sub>cs</sub> C<sub> </sub>*(1 + 1/g<sub>m</sub>*R<sub>2</sub>) |
| D. | C<sub>cs</sub> + C<sub> </sub>*(1 + 1/g<sub>m</sub>*R<sub>2</sub>) |
| Answer» E. | |
| 2. |
For a high frequency response of a simple C.E. stage with a transconductance of gm, what is Cin? |
| A. | C<sub> </sub>(1 + g<sub>m</sub>*R<sub>2</sub>) C<sub> </sub> |
| B. | C<sub> </sub>(1 + g<sub>m</sub>*R<sub>2</sub>) + C<sub> </sub> |
| C. | C<sub> </sub>(1 2*<sub>gm</sub>*R<sub>2</sub>) + C<sub> </sub> |
| D. | C<sub> </sub>(1 + 2*<sub>gm</sub>*R<sub>2</sub>) C<sub> </sub> |
| Answer» C. C<sub> </sub>(1 2*<sub>gm</sub>*R<sub>2</sub>) + C<sub> </sub> | |
| 3. |
If a C.E. stage with early effect has a load Rl and transconductance gm, what is the factor by which the capacitance between the base and the collector at the output side, gets multiplied? |
| A. | 1 + 2/g<sub>m</sub>*(R<sub>l</sub> || ro) |
| B. | 1 1/g<sub>m</sub>*(R<sub>l</sub> || ro) |
| C. | 1 + 1/g<sub>m</sub>*(R<sub>l</sub> || ro) |
| D. | 1 2/g<sub>m</sub>*(R<sub>l</sub> || ro) |
| Answer» D. 1 2/g<sub>m</sub>*(R<sub>l</sub> || ro) | |
| 4. |
If a C.E. stage has a load Rl and transconductance gm, what is the factor by which the capacitance between the base and the collector at the output side gets multiplied? |
| A. | 1 + 1/g<sub>m</sub>R<sub>l</sub> |
| B. | 1 1/g<sub>m</sub>R<sub>l</sub> |
| C. | 1 + 2/g<sub>m</sub>R<sub>l</sub> |
| D. | 1 2/g<sub>m</sub>R<sub>l</sub> |
| Answer» B. 1 1/g<sub>m</sub>R<sub>l</sub> | |
| 5. |
If a C.E. stage has a load Rl and transconductance gm, what is the factor by which the capacitance between the base and the collector at the input side gets multiplied? |
| A. | 1 + g<sub>m</sub>R<sub>l</sub> |
| B. | 1 g<sub>m</sub>R<sub>l</sub> |
| C. | 1 + 2*g<sub>m</sub>R<sub>l</sub> |
| D. | 1 2*g<sub>m</sub>R<sub>l</sub> |
| Answer» B. 1 g<sub>m</sub>R<sub>l</sub> | |
| 6. |
If the total capacitance between the base and the emitter increases by a factor of 2, the transit frequency __________ |
| A. | reduces by 2 |
| B. | increases by 2 |
| C. | reduces by 4 |
| D. | increases by 4 |
| Answer» B. increases by 2 | |
| 7. |
If the transconductance of the B.J.T increases, the transit frequency ______ |
| A. | Increases |
| B. | Decreases |
| C. | Doesn t get affected |
| D. | Doubles |
| Answer» B. Decreases | |
| 8. |
Which parasitic capacitors don t affect the frequency response of the C.C. stage of the B.J.T.? |
| A. | C<sub>cs</sub> |
| B. | C<sub>cs</sub> and C<sub>b </sub> |
| C. | C<sub>b</sub> |
| D. | C<sub>cs</sub> and C<sub> </sub> |
| Answer» B. C<sub>cs</sub> and C<sub>b </sub> | |
| 9. |
Which parasitic capacitors don t affect the frequency response of the C.B. stage of the B.J.T.? |
| A. | None of the parasitic capacitances |
| B. | All the parasitic capacitances |
| C. | Some of the coupling capacitors |
| D. | C<sub>cs</sub> and C<sub>b</sub> |
| Answer» C. Some of the coupling capacitors | |
| 10. |
Which parasitic capacitors are present at the collector terminal of the B.J.T.? |
| A. | C<sub>je</sub> and C<sub>b</sub> |
| B. | C<sub>cs</sub> and C<sub> </sub> |
| C. | C<sub>b</sub> |
| D. | C<sub>cs</sub> and C<sub>b</sub> |
| Answer» C. C<sub>b</sub> | |