Here is a free test on capacitor and dielectric substance.
capacitor and dielectric substance
Results
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HD Quiz powered by harmonic design
#1. In a region of constant potential
#2. . In a parallel plate capacitor, the capacity increases if
#3. A capacitor has some dielectric between its plates, and the capacitor is connected to a dc source. The battery is now disconnected and then the dielectric is removed, then
#4. A hollow metal sphere of radius 5 cm is charged so that the potential on its surface is 10 V. The potential at the centre of the sphere is
#5. A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of resulting system
#6. 64 drops each having the capacity C and potential V are combined to form a big drop. If the charge on the small drop is q, then the charge on the big drop will be
#7. A parallel plate condenser is connected with the terminals of a battery. The distance between the plates is 6mm. If a glass plate (dielectric constant K = 9) of 4.5 mm is introduced between them, then the capacity will become
#8. Two metal plates form a parallel plate capacitor. The distance between the plates is d. A metal sheet of thickness \frac{d}{2} and of the same area is introduced between the plates. What is the ratio of the capacitance in the two cases?
#9. Which of the following statements is false for a perfect conductor?
#10. A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates
