Related Questions

If f be the frequency, then dielectric loss is proportional to
A f
B f2
C 1f
D 1f2
The frequency generated by each decade in a direct frequency synthesizer is much higher than the frequency shown; this is done to
A Reduce the spurious frequency problem
B Increase the frequency stability of the synthesizer
C Reduce the number of decades
D Reduce the number of crystals required
Which of the following is not a dielectric material?
A Cotton, silk and paper
B Asbestos, glass, porcelain and mica
C Rubber and polymeric resins
D All of the above
বরফের পরাবৈদ্যুতিক (Dielectric ) ধ্রুবক কত ?
A 4
B 5
C 2
D 3
For making a capacitor it is better to have a dielectric having
A High permittivity
B Low permittivity
C Permittivity same as that of air
D Permittivity which is neither high nor low
In capacitance grading a homogeneous dielectric is used.
A Yes
B No
Dielectric strength of rubber is around
A 5 kV/mm
B 15 kV/mm
C 30 kV/mm
D 200 kV/mm
In capacitance grading of cables we use a _________ dielectric.
A Composite
B Porous
C Homogeneous
D Hygroscopic
For making a capacitor, it is better to select a dielectric having
A low permittivity
B high permittivity
C permittivity same as that of air
D permittivity slightly more than that of air
When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will
A remain uncharged
B decrease
C increase
D become zero

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