MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
Consider that the phase shift of an RC coupled CE amplifier is 260°. Find the low frequency gain when the voltage gain of the transistor is -150. |
| A. | 100 |
| B. | 26 |
| C. | 40 |
| D. | 55 |
| Answer» C. 40 | |
| 2. |
Consider the circuit shown. hfe = 50, hie = 1000Ω. Find magnitude of voltage gain at input frequency 10Hz. |
| A. | 100 |
| B. | 133 |
| C. | 166 |
| D. | 220 |
| Answer» C. 166 | |
| 3. |
Given collector resistance = 2kΩ, load resistance = 5kΩ, collector capacitance = 1μF, emitter capacitance = 20μF, collector current = 2mA, source resistance = 2kΩ. If the effect of blocking capacitor is ignored, find the applicable cut-off frequency. |
| A. | 22.73 Hz |
| B. | 612 Hz |
| C. | 673Hz |
| D. | 317 Hz |
| Answer» C. 673Hz | |
| 4. |
Consider an RC coupled amplifier at low frequency. Internal voltage gain is -120. Find the voltage gain magnitude, when given that collector resistance = 1kΩ, load = 9kΩ, collector capacitance is 0. is 0.1μF, and input frequency is 20Hz. |
| A. | 120 |
| B. | 12 |
| C. | 15 |
| D. | -12 |
| Answer» D. -12 | |
| 5. |
Find net voltage gain, given hfe = 50 and hie = 1kΩ. |
| A. | 27.68 |
| B. | -22 |
| C. | 30.55 |
| D. | -27.68 |
| Answer» E. | |
| 6. |
When applying miller’s theorem to resistors, resistance R1 is for node 1 and R2 for node 2. If R1>R2, then for same circuit, then for capacitance for which the theorem is applied, which will be larger, C1 or C2? |
| A. | C1 |
| B. | C2 |
| C. | Both are equal |
| D. | Insufficient data |
| Answer» B. C2 | |
| 7. |
In Miller’s theorem, what is the constant K? |
| A. | Total voltage gain |
| B. | Internal voltage gain |
| C. | Internal current gain |
| D. | Internal power gain |
| Answer» C. Internal current gain | |