MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is a transistor made up of? |
| A. | Chip |
| B. | Insulator |
| C. | Semiconductor |
| D. | Metal |
| Answer» D. Metal | |
| 2. |
What can a p-n junction diode be used as? |
| A. | Condenser |
| B. | Regulator |
| C. | Amplifier |
| D. | Rectifier |
| Answer» E. | |
| 3. |
Identify the condition for a transistor to act as an amplifier. |
| A. | The emitter-base junction is forward biased and the base-collector junction is reverse biased |
| B. | No bias voltage is required |
| C. | Both junctions are forward biased |
| D. | Both junctions are reverse biased |
| Answer» B. No bias voltage is required | |
| 4. |
When a junction diode is reverse biased, what causes current across the junction? |
| A. | Diffusion of charges |
| B. | Nature of material |
| C. | Drift of charges |
| D. | Both drift and diffusion of charges |
| Answer» D. Both drift and diffusion of charges | |
| 5. |
Forward biasing of p-n junction offers infinite resistance. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
What is a Zener diode used as? |
| A. | Oscillator |
| B. | Regulator |
| C. | Rectifier |
| D. | Filter |
| Answer» C. Rectifier | |
| 7. |
What is rectification? |
| A. | Process of conversion of ac into dc |
| B. | Process of conversion of low ac into high ac |
| C. | Process of conversion of dc into ac |
| D. | Process of conversion of low dc into high dc |
| Answer» B. Process of conversion of low ac into high ac | |
| 8. |
What is an oscillator? |
| A. | An amplifier with a large gain |
| B. | An amplifier with negative feedback |
| C. | An amplifier with positive feedback |
| D. | An amplifier with no feedback |
| Answer» D. An amplifier with no feedback | |
| 9. |
What is the semiconductor diode used as? |
| A. | Oscillator |
| B. | Amplifier |
| C. | Rectifier |
| D. | Modulator |
| Answer» D. Modulator | |
| 10. |
Why is there a sudden increase in current in Zener diode? |
| A. | Due to the rupture of ionic bonds |
| B. | Due to rupture of covalent bonds |
| C. | Due to viscosity |
| D. | Due to potential difference |
| Answer» C. Due to viscosity | |