MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A shunt capacitor of value 500µF fed rectifier circuit. The dc voltage is 14.43V. The dc current flowing is 200mA. It is operating at a frequency of 50Hz. What will be the value of peak rectified voltage? |
| A. | 18.67V |
| B. | 16.43V |
| C. | 15.98V |
| D. | 11.43V |
| Answer» C. 15.98V | |
| 2. |
The rms ripple voltage (Vrms) of a shunt filter is_________ |
| A. | IDC/2√3 |
| B. | IDC2√3 |
| C. | IDC/√3 |
| D. | IDC√3 |
| Answer» B. IDC2√3 | |
| 3. |
A full wave rectifier uses a capacitor filter with 500µF capacitor and provides a load current of 200mA at 8% ripple. Calculate the dc voltage. |
| A. | 15.56V |
| B. | 20.43V |
| C. | 11.98V |
| D. | 14.43V |
| Answer» E. | |
| 4. |
A 100µF capacitor when used as a filter has 15V ac across it with a load resistor of 2.5KΩ. If the filter is the full wave and supply frequency is 50Hz, what is the percentage of ripple frequency in the output? |
| A. | 2.456% |
| B. | 1.154% |
| C. | 3.785% |
| D. | 3.675% |
| Answer» C. 3.785% | |
| 5. |
A half wave rectifier, operated from a 50Hz supply uses a 1000µF capacitance connected in parallel to the load of rectifier. What will be the minimum value of load resistance that can be connected across the capacitor if the ripple% not exceeds 5? |
| A. | 114.87Ω |
| B. | 167.98Ω |
| C. | 115.47Ω |
| D. | 451.35Ω |
| Answer» D. 451.35Ω | |