MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What happens to the capacitance when the voltage across the capacitor increases? |
| A. | Decreases |
| B. | Increases |
| C. | Becomes 0 |
| D. | No effect |
| Answer» E. | |
| 2. |
Calculate the capacitance of a capacitor that stores 40microC of charge and has a voltage of 2V. |
| A. | 20F |
| B. | 20microF |
| C. | 10F |
| D. | 10microF |
| Answer» C. 10F | |
| 3. |
What is the voltage across the capacitor if the switch is closed and steady state is reached? |
| A. | 8V |
| B. | 0V |
| C. | 10V |
| D. | Infinity |
| Answer» D. Infinity | |
| 4. |
WHAT_HAPPENS_TO_THE_CAPACITANCE_WHEN_THE_VOLTAGE_ACROSS_THE_CAPACITOR_INCREASES??$ |
| A. | Decreases |
| B. | Increases |
| C. | Becomes 0 |
| D. | No effect |
| Answer» B. Increases | |
| 5. |
Calculate the capacitance of a capacitor that stores 40microC of charge and has a voltage of 2V? |
| A. | 20F |
| B. | 20microF |
| C. | 10F |
| D. | 10microF |
| Answer» C. 10F | |
| 6. |
What happens to the current flow in a fully charged capacitor? |
| A. | Current flow stops |
| B. | Current flow doubles |
| C. | Current flow becomes half its original value |
| D. | Current flow becomes one-fourth its original value |
| Answer» B. Current flow doubles | |
| 7. |
When will capacitor fully charged? |
| A. | When the voltage across its plates is half the voltage from ground to one of its plates |
| B. | When current through the capacitor is a 1/root2 time its value |
| C. | When the supply voltage is equal to the capacitor voltage |
| D. | Never |
| Answer» D. Never | |
| 8. |
When the voltage across a capacitor increases, what happens to the charge stored in it? |
| A. | Increases |
| B. | Decreases |
| C. | Becomes zero |
| D. | Cannot be determined |
| Answer» B. Decreases | |
| 9. |
If one plate of a parallel plate capacitor is charged to positive charge the other plate is charged to? |
| A. | Positive |
| B. | Negative |
| C. | Positive or negative |
| D. | Not charged |
| Answer» C. Positive or negative | |
| 10. |
What is the voltage across a capacitor at the time of switching, that is, when t=0? |
| A. | Infinity |
| B. | 0V |
| C. | Cannot be determined |
| D. | 1V |
| Answer» C. Cannot be determined | |
| 11. |
If a 2F capacitor has 1C charge, calculate the voltage across its terminals. |
| A. | 0.5V |
| B. | 2V |
| C. | 1.5V |
| D. | 1V |
| Answer» C. 1.5V | |
| 12. |
Which among the following expressions relate charge, voltage and capacitance of a capacitor? |
| A. | Q=C/V |
| B. | Q=V/C |
| C. | Q=CV |
| D. | C=Q2V |
| Answer» D. C=Q2V | |