Related Questions

Dielectric strength of a material depends on
A moisture content
B temperature
C thickness
D all 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 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
Dielectric strength of medium
A increases with rise in temperature
B increases with moisture content
C is same for all insulating materials
D none of the above
When a dielectric is placed in an electric field the field strength
A decreases
B increases
C reduces to zero
D remain unchanged
Which medium has the least dielectric strength ?
A Paraffin wax
B Quartz
C Glass
D Air
Dielectric strength ______ with increasing thickness
A increases
B decreases
C remains unaltered
D none of the above

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