Related Mcqs:

1. Energy stored in the electric field of a capacitor C when charged from a D.C source of voltage V is equal to joules_______________?

   A. CV2
   B. C2V
   C. CV2
   D. CV

2. A 5 μF capacitor has a potential difference across its plates of 200 volts. The charge on the capacitor is____________?

   A. 2.5 x 10-8 C
   B. 10-5 C
   C. 103 C
   D. 4 x 103 C

3. A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance _______?

   A. Ceramic capacitor
   B. Mica capacitor
   C. Both will have identical value of capacitance
   D. It depends on applied voltage

4. A capacitor charged to 200 V has 2000 (iC of charge. The value of capacitance will be_____________?

   A. 10 F
   B. 10 uF
   C. 100 nF
   D. 1000 uF

5. While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is____________?

   A. short-circuited
   B. open circuited
   C. alright
   D. leaky

6. capacitor is to have an energy content of 20J it must be placed across a potential difference of________________?

   A. 4 volts
   B. 9 volts
   C. 2 volts
   D. 1 vol

7. What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?

   A. 50 pF
   B. 100 pF
   C. 150 pF
   D. 200 pF

8. In a charged capacitor the energy resides in________________?

   A. magnetic hield
   B. electric field
   C. nuclear field
   D. gravitational field

9. When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will______________?

   A. remain uncharged
   B. decrease
   C. increase
   D. become zero

10. A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is_____________?

    A. 0.024 F
    B. 0.12 F
    C. 0.6 F
    D. 0.8 F