MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Gain of an amplifier usually expressed in db because _______________ |
| A. | It is a small unit |
| B. | Calculations become easy |
| C. | Human ear response is logarithmic |
| D. | Gain is reduced |
| Answer» D. Gain is reduced | |
| 2. |
Which transformer is used for impedance matching in transistor coupled amplifier? |
| A. | step-up |
| B. | step-down |
| C. | same turn ratio |
| D. | different turn ratio |
| Answer» C. same turn ratio | |
| 3. |
For extremely low frequencies, RC coupling is not used because of ___________ |
| A. | There is considerable power loss |
| B. | There is a hum in the output |
| C. | Electrical size of the coupling capacitor |
| D. | Low efficiency |
| Answer» D. Low efficiency | |