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Electronics and Communication Engineering - Materials and Components

Exercise : Materials and Components - Section 7
21.
A characteristic property of crystal is its periodicity of structure.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
If Bmax is the maximum flux density, hysteresis loss is proportional to
Bmax
B1.6max
B2max
B3max
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
For making a capacitor it is better to have a dielectric having
high permittivity
low permittivity
permittivity same as that of air
permittivity which is neither high nor low
Answer: Option
Explanation:

Capacitance is directly proportional to permittivity.

24.
In solid insulator materials having only one kind of atom, the types of polarization which exist are
electronic only
electronic and ionic
electronic, ionic and permanent
electronic and permanent
Answer: Option
Explanation:

In elemental dielectrics only electronic polarization exists.

25.
Schrodinger wave equation is a
linear equation
differential equation
partial differential equation
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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