Of the following capacitors, which one has the highest dielectric constant?

Which of the following materials has the highest value of dielectric constant?

A

Glass

B

Vacuum

C

Ceramics

D

Oil

If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.

A

True

B

False

Which of the following material has least value of dielectric constant ?

A

Ceramics

B

Oil

C

Glass

D

Paper

The dielectric constant is the ability of a material to establish an electric field.

A

True

B

False

The value of dielectric constant for vacuum is taken as

A

zero

B

1

C

4

D

10

The dielectric constant (relative permittivity) of glass is given by

A

0.1 to 0.4

B

0.5 to 1.0

C

2.0 to 4.0

D

5 to 100

The dielectric constant of a material is a measure of:

A

the amount of voltage it can withstand before breaking down

B

how well the material concentrates electrostatic lines of force

C

the amount of opposition to the current flow

D

how well the material concentrates magnetic lines of force

E

None of the above

Dielectric constant for mica is nearly

A

200

B

100

C

3 to 8

D

1 to 2

Out of the following capacitors of identical rating which one will have the smallest dimensions ?

A

Aluminium foil capacitor

B

Mica capacitor

C

Ceramic capacitor

D

Paper capacitor

Which of the following capacitors has relatively shorter shelf life ?

A

Mica capacitor

B

Electrolytic capacitor

C

Ceramic capacitor

D

Paper capacitor

Of the following capacitors, which one has the highest dielectric constant?

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