Dielectrics Round 2

Molecules of a polar dielectric have intrinsic dipole moment?

• True

• False

Which among the following is the best dielectric?

• Ceramic

• Metal

• Plastic

• Silicon

Where is electric charge stored in a Capacitor?

• Dielectric

• Metal plates

• Both

• None of the these

What can be considered as dielectric constant of air?

• Less then 1

• Equal to 1

• Greater than 1

• Equal to 0

Which of the following is a dielectric property of solid?

• Anti ferroelectricity

• Piezoelectricity

• Pyro electricity

• All of these

When a dielectric material is introduced between the plates of a charged condenser, after disconnecting battery electric field between plates?

• Decreases

• Increases

• Does not change

• May increase or decrease

Two point charges q & q1 are placed at distance r apart. A dielectric sheet of dielectric constant K and thickness t is placed bet?

Find force between two charges:

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• None

If dielectric constant and dielectric strength be denoted by K and X resp. Then a material suitable for use as a dielectric in capacitor must have:

• High K and high X

• High K and low X

• Low K and high X

• Low K and low X

Which is a not a dielectric material?

• Silicon dioxide

• Silicon Nitride

• Titanium oxide

• None

A dielectric with dielectric constant of K is inserted between the plates of capacitor of capacitance C having potential difference of ΔV. What will be the energy stored in capacitor ?

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