Electronics and Communication Engineering - Materials and Components

6.
If m is the mass of electron cloud, the equation of motion of electron cloud in the presence of an alternating electric field is of the form
Answer: Option
Explanation:
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7.
The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as
Matthiessen's rule
Debye rule
Curie rule
Onne's rule
Answer: Option
Explanation:
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8.
Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called
Debye temperature
Curie temperature
Neel temperature
Transition temperature
Answer: Option
Explanation:
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9.
A dielectric material must be
insulator
good conductor
resistor
semiconductor
Answer: Option
Explanation:

Any material other than insulator will short-circuit the plates.


10.
Spontaneous magnetisation is characteristic of ferromagnetic materials.
True
False
Answer: Option
Explanation:
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