MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IN_A_BRIDGE_FULL_WAVE_RECTIFIER,_THE_INPUT_SINE_WAVE_IS_250SIN100T._THE_OUTPUT_RIPPLE_FREQUENCY_WILL_BE_________?$ |
| A. | 50Hz |
| B. | 200Hz |
| C. | 100Hz |
| D. | 25Hz |
| Answer» D. 25Hz | |
| 2. |
Number of diodes used in a full wave bridge rectifier is________? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 3. |
In a bridge full wave rectifier, the input sine wave is 40sin100t. The average output voltage is________? |
| A. | 22.73V |
| B. | 16.93V |
| C. | 25.47V |
| D. | 33.23V |
| Answer» D. 33.23V | |
| 4. |
Efficiency of bridge full wave rectifier is_________ |
| A. | 81.2% |
| B. | 50% |
| C. | 40.6% |
| D. | 45.33% |
| Answer» B. 50% | |
| 5. |
If peak voltage on a bridge full wave rectifier circuit is 5V and diode cut in voltage os 0.7, then the peak inverse voltage on diode will be_________ |
| A. | 4.3V |
| B. | 9.3V |
| C. | 8.6V |
| D. | 3.6V |
| Answer» E. | |
| 6. |
Transformer utilization factor of bridge full wave rectifier _________ |
| A. | 0.623 |
| B. | 0.812 |
| C. | 0.693 |
| D. | 0.825 |
| Answer» C. 0.693 | |
| 7. |
If input frequency is 50Hz then ripple frequency of bridge full wave rectifier will be equal to_________ |
| A. | 200Hz |
| B. | 50Hz |
| C. | 45Hz |
| D. | 100Hz |
| Answer» E. | |
| 8. |
Ripple factor of bridge full wave rectifier is? |
| A. | 1.414 |
| B. | 1.212 |
| C. | 0.482 |
| D. | 1.321 |
| Answer» D. 1.321 | |
| 9. |
DC power output of bridge full wave rectifier is equal to (Im is the peak current and RL is the load resistance). |
| A. | 2 I<sub>m</sub><sup>2</sup>R<sub>L</sub> |
| B. | 4 I<sub>m</sub><sup>2</sup>R<sub>L</sub> |
| C. | I<sub>m</sub><sup>2</sup>R<sub>L</sub> |
| D. | I<sub>m</sub><sup>2</sup> R<sub>L</sub>/2 |
| Answer» C. I<sub>m</sub><sup>2</sup>R<sub>L</sub> | |
| 10. |
DC average current of a bridge full wave rectifier (where Im is the maximum peak current of input). |
| A. | 2I<sub>m</sub> |
| B. | I<sub>m</sub> |
| C. | I<sub>m</sub>/2 |
| D. | 1.414I<sub>m</sub> |
| Answer» C. I<sub>m</sub>/2 | |