MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
In a centre tapped full wave rectifier, the input sine wave is 250sin100t. The output ripple frequency will be _________ |
| A. | 50Hz |
| B. | 100Hz |
| C. | 25Hz |
| D. | 200Hz |
| Answer» C. 25Hz | |
| 2. |
If the peak voltage on a centre tapped full wave rectifier circuit is 5V and diode cut in voltage is 0.7. The peak inverse voltage on diode is_________ |
| A. | 4.3V |
| B. | 9.3V |
| C. | 5.7V |
| D. | 10.7V |
| Answer» C. 5.7V | |
| 3. |
In the circuits given below, the correct full wave rectifier is _________ |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8.png"><img alt="The correct full wave rectifier in the given diagram - option a" class="alignnone size-full wp-image-204917" height="208" src="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8.png" width="240"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8a.png"><img alt="The correct full wave rectifier in the given diagram - option b" class="alignnone size-full wp-image-204918" height="220" src="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8a.png" width="248"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8b.png"><img alt="The correct full wave rectifier in the given diagram - option c" class="alignnone size-full wp-image-204919" height="224" src="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8b.png" width="267"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8c.png"><img alt="The correct full wave rectifier in the given diagram - option d" class="alignnone size-full wp-image-204920" height="237" src="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8c.png" width="256"/></a> |
| Answer» D. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8c.png"><img alt="The correct full wave rectifier in the given diagram - option d" class="alignnone size-full wp-image-204920" height="237" src="https://www.sanfoundry.com/wp-content/uploads/2018/02/electronic-devices-circuits-questions-answers-full-wave-rectifier-q8c.png" width="256"/></a> | |
| 4. |
A full wave rectifier uses load resistor of 1500 . Assume the diodes have Rf=10 , Rr= . The voltage applied to diode is 30V with a frequency of 50Hz. Calculate the AC power input. |
| A. | 368.98mW |
| B. | 275.2mW |
| C. | 145.76mW |
| D. | 456.78mW |
| Answer» C. 145.76mW | |
| 5. |
A full wave rectifier delivers 50W to a load of 200 . If the ripple factor is 2%, calculate the AC ripple across the load. |
| A. | 2V |
| B. | 5V |
| C. | 4V |
| D. | 1V |
| Answer» B. 5V | |
| 6. |
A full wave rectifier supplies a load of 1K . The AC voltage applied to diodes is 220V (rms). If diode resistance is neglected, what is the ripple voltage? |
| A. | 0.562V |
| B. | 0.785V |
| C. | 0.954V |
| D. | 0.344V |
| Answer» D. 0.344V | |