MCQOPTIONS
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MCQOPTIONS
This section includes 5 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. |
The output waveform of CLC filter is superimposed by a waveform referred to as_________ |
| A. | Square wave |
| B. | Triangular wave |
| C. | Saw tooth wave |
| D. | Sine wave |
| Answer» D. Sine wave | |
| 2. |
What is the relation between time constant and load resistance? |
| A. | They don t depend on each other |
| B. | They are directly proportional |
| C. | They are inversely proportional |
| D. | Cannot be predicted |
| Answer» D. Cannot be predicted | |
| 3. |
The advantages of a pi-filter is_________ |
| A. | low output voltage |
| B. | low PIV |
| C. | low ripple factor |
| D. | high voltage regulation |
| Answer» D. high voltage regulation | |
| 4. |
For a given CLC filter, the operating frequency is 50Hz and 10 F capacitors used. The load resistance is 3460 with an inductance of 10henry. Calculate the ripple factor. |
| A. | 0.165% |
| B. | 0.142% |
| C. | 0.178% |
| D. | 0.321% |
| Answer» B. 0.142% | |
| 5. |
A single phase full wave rectifier makes use of pi section filter with 10 F capacitors and a choke of 10henry. The secondary voltage is 280V and the load current is 100mA. Determine the dc output voltage when f=50Hz. |
| A. | 345V |
| B. | 521V |
| C. | 243V |
| D. | 346V |
| Answer» E. | |