Quiz  /  Neet Physics MCQ On Dielectrics

  • 1. 
    Which among the following is a dielectric?

  • Copper
  • Aluminium
  • Plastic
  • Ceramic

  • 2. 
    How can a dielectric be converted to a conductor?

  • Compression
  • Heating
  • Expanding
  • Freezing

  • 3. 
    Which of the following statements is true for a dielectric?

  • Dielectrics are superconductors at high temperature
  • Dielectrics are superconductors at low temperature
  • The cannot become superconductors
  • They have very less breakdown voltage

  • 4. 
    Dielectric materials do not have

  • Free electrons
  • Bound charge
  • Proton
  • neutron

  • 5. 
    Dielectric materials are basically

  • Insulators
  • Semiconductors
  • Superconductors
  • conductors

  • 6. 
    Find the dielectric constant for material with electric susceptibility of 5

  • 4
  • 6
  • 7
  • 3

  • 7. 
    When the air in a capacitor is replaced by a medium of dielectric constant K, the capacity

  • Deceases K times
  • Increases K times
  • The K
  • times
  • Remains constant

  • 8. 
    The dielectric constant cannot be

  • Infinity
  • 5
  • 6
  • 7

  • 9. 
    A capacitor of capacity C=10μF is connected to a constant voltage battery of 12 V. Now space between plates is filled with a liquid of dielectric constant 5. The charge that flows now from the battery to the capacitor is

  • 120 μC
  • 699 μC
  • 480 μC
  • 24 μC

  • 10. 
    The capacitance of a parallel plate capacitor is C. If a dielectric slab of thickness equal to one-fourth of the plate separation and dielectric constant K is inserted between the plates, then the capacitance becomes

  • KC/2(K+1)
  • 2KC/K+1
  • 5KC/4K+1
  • 4KC/3K+1
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