McqMate
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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