An electrolytic capacitor can be used for_____________?

Related Mcqs:

1. 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

2. An electrolytic capacitor is generally made to provide__________?

   A. low capacitance
   B. fixed capacitance
   C. variable capacitance
   D. large value of capacitance

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 having capacitance of 5 uF is charged to a potential difference of 10,000 V. The energy stored in the capacitor is__________?

   A. 50 joules
   B. 150 joules
   C. 200 joules
   D. 250 joules

5. A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ?

   A. Paper capacitor
   B. Ceramic capacitor
   C. Electrolytic capacitor
   D. Any-of the above

6. 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

7. Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ________?

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

8. The capacitance of a capacitor is not affected by____________?

   A. distance between plates
   B. area of plates
   C. thickness of plates
   D. all of the above

9. In a charged capacitor the energy resides in________________?

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

10. If free space between the plates of a capacitor is replaced by a dielectric_____________?

    A. The potential difference remains constant capacittance and energy stored increases
    B. The potential difference remains constant capacittance decreases and energy increases
    C. The potential difference decreases but both capacitance and energy increase
    D. both potential difference and capacitance decrease but energy increases