Related Questions

The dielectric constant is the ability of a material to establish an electric field.
A True
B False
The length of a rectangular field F is 3 km greater than the side of a square field M , and the width of field F is 3 km less then the side of field M. If the area of field M is m2 square km, what is the area of field F?
A m2 +6
B 6
C m2 - 6
D m2 +9
Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is
A Normal to both current and magnetic field
B In the direction of current
C Antiparallel to magnetic field
D In arbitrary direction
Hall effect is observed in a specimen (metal or semi conductor) when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is
A Normal to both current and magnetic field
B In the same direction as current
C In a direction anti parallel to magnetic field
D None of the above
When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability.
A True
B False
In what ratio must a mixture of 11% sugar strength be mixed with that of 25% sugar strength so as to get a new mixture of 13% sugar strength?
A 5:1
B 6:1
C 7:2
D 10:3
Dielectric strength of rubber is around
A 5 kV/mm
B 15 kV/mm
C 30 kV/mm
D 200 kV/mm
The dielectric strength of transformer oil is expected to be
A lkV
B 33 kV
C 100 kV
D 330 kV
Dielectric strength of a material depends on
A moisture content
B temperature
C thickness
D all of the above
Dielectric strength of mica is
A 10 to 20 kV/mm
B 30 to 50 kV/mm
C 50 to 200 kV/mm
D 300 to 500 kV/mm

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