McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .
Chapters
| 1. |
If the plates of capacitor are oppositely charged then the total charge is equal to |
| A. | negative |
| B. | positive |
| C. | zero |
| D. | infinite |
| Answer» C. zero | |
| 2. |
Area under current-time graph represents |
| A. | magnitude of charge |
| B. | dielectric |
| C. | amount of positive charge |
| D. | amount of negative charge |
| Answer» A. magnitude of charge | |
| 3. |
If charge stored on plates of capacitor is large, then capacitance will be |
| A. | small |
| B. | large |
| C. | zero |
| D. | infinite |
| Answer» B. large | |
| 4. |
insulator which is placed between 2 plates of capacitor is |
| A. | electric |
| B. | dielectric |
| C. | inductor |
| D. | resistor |
| Answer» B. dielectric | |
| 5. |
Combined capacitance is equal to the |
| A. | sum of all capacitance of capacitors |
| B. | product of all the capacitance |
| C. | difference between the capacitors |
| D. | average capacitance of capacitors |
| Answer» A. sum of all capacitance of capacitors | |
| 6. |
capacitance and charge on plates are |
| A. | inversely related |
| B. | directly related |
| C. | not related at all |
| D. | always equal |
| Answer» B. directly related | |
| 7. |
If the capacitors are connected in parallel, then the potential difference across each capacitor is |
| A. | same |
| B. | different |
| C. | zero |
| D. | infinite |
| Answer» A. same | |
| 8. |
Total capacitance of 300 mF capacitor and a 600 mF in series is |
| A. | 300 mF |
| B. | 500 mF |
| C. | 200 mF |
| D. | 1000 mF |
| Answer» C. 200 mF | |
| 9. |
Work done in charging a capacitor is given by |
| A. | (1⁄2)QV |
| B. | 2QV |
| C. | QV |
| D. | 2V |
| Answer» A. (1⁄2)QV | |
| 10. |
Device used to store energy in electrical circuits is |
| A. | resistor |
| B. | inductor |
| C. | capacitor |
| D. | diode |
| Answer» C. capacitor | |
| 11. |
Energy stored in a 2000 mF capacitor charged to a potential difference of 10 V is |
| A. | 0.12 J |
| B. | 1.3 J |
| C. | 0.10 J |
| D. | 3 J |
| Answer» C. 0.10 J | |
| 12. |
Capacitor is fully charged if potential difference is equal to |
| A. | e.m.f |
| B. | current |
| C. | resistance |
| D. | power |
| Answer» A. e.m.f | |
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