MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the circuit, what is the output voltage? |
| A. | 50 V |
| B. | 70 V |
| C. | 120 V |
| D. | 170 V |
| Answer» B. 70 V | |
| 2. |
In a circuit the load current is 5 mA and the unregulated output is 10 V. If the voltage drop across the Zener diode is 3 V, what should be the value of resistance? |
| A. | 50 Ω |
| B. | 100 Ω |
| C. | 125 Ω |
| D. | 150 Ω |
| Answer» E. | |
| 3. |
The electric field required for the field ionization is of what order? |
| A. | 104 V/m |
| B. | 105 V/m |
| C. | 106 V/m |
| D. | 107 V/m |
| Answer» D. 107 V/m | |
| 4. |
The depletion region of the Zener diode is ____________ |
| A. | Thick |
| B. | Normal |
| C. | Very Thin |
| D. | Very thick |
| Answer» D. Very thick | |
| 5. |
In normal junctions, the breakdown is same as Zener breakdown. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Zener Diode is mostly used as ____________ |
| A. | Half-wave rectifier |
| B. | Full-wave rectifier |
| C. | Voltage Regulator |
| D. | LED |
| Answer» D. LED | |
| 7. |
When the reverse voltage across the Zener diode is increased _____________ |
| A. | The value of saturation current increases |
| B. | No effect |
| C. | The value of cut-off potential increases |
| D. | The value of cut-off potential decreases |
| Answer» D. The value of cut-off potential decreases | |
| 8. |
What is the level of doping in Zener Diode? |
| A. | Lightly Doped |
| B. | Heavily Doped |
| C. | Moderately Doped |
| D. | No doping |
| Answer» C. Moderately Doped | |
| 9. |
Zener diode is designed to specifically work in which region without getting damaged? |
| A. | Active region |
| B. | Breakdown region |
| C. | Forward bias |
| D. | Reverse bias |
| Answer» C. Forward bias | |