Electronics and Communication Engineering - Materials and Components

26.
The classes of solid dielectrics are
A, B, C, D, E, F, H
A E B F H C D
Y A E B F H C
A E B F H C
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
A 200 turn coil has a self inductance of 10 mH. If the number of turns is doubled, all other quantities remaining the same, the self inductance will be
2.5 mH
5 mH
20 mH
40 mH
Answer: Option
Explanation:

Inductance is proportional to square of number of turns.


28.
A material which is lightly repelled by a magnetic field is known as
diamagnetic material
non-magnetic material
ferromagnetic material
paramagnetic material
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
Which of the following is the poorest conductor of electricity?
Aluminium
Nichrome
Copper
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
The magnetic moment in units of Bohr magneton of a ferrous ion in any ferrite is
zero
2
4
6
Answer: Option
Explanation:
No answer description is available. Let's discuss.